81881520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 320

約数和(自身を含む): 318836736

約数和(自身を除く): 236955216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 47, 48, 51, 56, 60, 61, 68, 70, 80, 84, 85, 94, 102, 105, 112, 119, 120, 122, 136, 140, 141, 168, 170, 183, 188, 204, 210, 235, 238, 240, 244, 255, 272, 280, 282, 305, 329, 336, 340, 357, 366, 376, 408, 420, 427, 470, 476, 488, 510, 560, 564, 595, 610, 658, 680, 705, 714, 732, 752, 799, 816, 840, 854, 915, 940, 952, 976, 987, 1020, 1037, 1128, 1190, 1220, 1281, 1316, 1360, 1410, 1428, 1464, 1598, 1645, 1680, 1708, 1785, 1830, 1880, 1904, 1974, 2040, 2074, 2135, 2256, 2380, 2397, 2440, 2562, 2632, 2820, 2856, 2867, 2928, 3111, 3196, 3290, 3416, 3570, 3660, 3760, 3948, 3995, 4080, 4148, 4270, 4760, 4794, 4880, 4935, 5124, 5185, 5264, 5593, 5640, 5712, 5734, 6222, 6392, 6405, 6580, 6832, 7140, 7259, 7320, 7896, 7990, 8296, 8540, 8601, 9520, 9588, 9870, 10248, 10370, 11186, 11280, 11468, 11985, 12444, 12784, 12810, 13160, 14280, 14335, 14518, 14640, 15555, 15792, 15980, 16592, 16779, 17080, 17202, 19176, 19740, 20069, 20496, 20740, 21777, 22372, 22936, 23970, 24888, 25620, 26320, 27965, 28560, 28670, 29036, 31110, 31960, 33558, 34160, 34404, 36295, 38352, 39480, 40138, 41480, 43005, 43554, 44744, 45872, 47940, 48739, 49776, 51240, 55930, 57340, 58072, 60207, 62220, 63920, 67116, 68808, 72590, 78960, 80276, 82960, 83895, 86010, 87108, 89488, 95880, 97478, 100345, 102480, 108885, 111860, 114680, 116144, 120414, 124440, 134232, 137616, 145180, 146217, 160552, 167790, 172020, 174216, 191760, 194956, 200690, 217770, 223720, 229360, 240828, 243695, 248880, 268464, 290360, 292434, 301035, 321104, 335580, 341173, 344040, 348432, 389912, 401380, 435540, 447440, 481656, 487390, 580720, 584868, 602070, 671160, 682346, 688080, 731085, 779824, 802760, 871080, 963312, 974780, 1023519, 1169736, 1204140, 1342320, 1364692, 1462170, 1605520, 1705865, 1742160, 1949560, 2047038, 2339472, 2408280, 2729384, 2924340, 3411730, 3899120, 4094076, 4816560, 5117595, 5458768, 5848680, 6823460, 8188152, 10235190, 11697360, 13646920, 16376304, 20470380, 27293840, 40940760, 81881520]

約数ペア:

[(1, 81881520), (2, 40940760), (3, 27293840), (4, 20470380), (5, 16376304), (6, 13646920), (7, 11697360), (8, 10235190), (10, 8188152), (12, 6823460), (14, 5848680), (15, 5458768), (16, 5117595), (17, 4816560), (20, 4094076), (21, 3899120), (24, 3411730), (28, 2924340), (30, 2729384), (34, 2408280), (35, 2339472), (40, 2047038), (42, 1949560), (47, 1742160), (48, 1705865), (51, 1605520), (56, 1462170), (60, 1364692), (61, 1342320), (68, 1204140), (70, 1169736), (80, 1023519), (84, 974780), (85, 963312), (94, 871080), (102, 802760), (105, 779824), (112, 731085), (119, 688080), (120, 682346), (122, 671160), (136, 602070), (140, 584868), (141, 580720), (168, 487390), (170, 481656), (183, 447440), (188, 435540), (204, 401380), (210, 389912), (235, 348432), (238, 344040), (240, 341173), (244, 335580), (255, 321104), (272, 301035), (280, 292434), (282, 290360), (305, 268464), (329, 248880), (336, 243695), (340, 240828), (357, 229360), (366, 223720), (376, 217770), (408, 200690), (420, 194956), (427, 191760), (470, 174216), (476, 172020), (488, 167790), (510, 160552), (560, 146217), (564, 145180), (595, 137616), (610, 134232), (658, 124440), (680, 120414), (705, 116144), (714, 114680), (732, 111860), (752, 108885), (799, 102480), (816, 100345), (840, 97478), (854, 95880), (915, 89488), (940, 87108), (952, 86010), (976, 83895), (987, 82960), (1020, 80276), (1037, 78960), (1128, 72590), (1190, 68808), (1220, 67116), (1281, 63920), (1316, 62220), (1360, 60207), (1410, 58072), (1428, 57340), (1464, 55930), (1598, 51240), (1645, 49776), (1680, 48739), (1708, 47940), (1785, 45872), (1830, 44744), (1880, 43554), (1904, 43005), (1974, 41480), (2040, 40138), (2074, 39480), (2135, 38352), (2256, 36295), (2380, 34404), (2397, 34160), (2440, 33558), (2562, 31960), (2632, 31110), (2820, 29036), (2856, 28670), (2867, 28560), (2928, 27965), (3111, 26320), (3196, 25620), (3290, 24888), (3416, 23970), (3570, 22936), (3660, 22372), (3760, 21777), (3948, 20740), (3995, 20496), (4080, 20069), (4148, 19740), (4270, 19176), (4760, 17202), (4794, 17080), (4880, 16779), (4935, 16592), (5124, 15980), (5185, 15792), (5264, 15555), (5593, 14640), (5640, 14518), (5712, 14335), (5734, 14280), (6222, 13160), (6392, 12810), (6405, 12784), (6580, 12444), (6832, 11985), (7140, 11468), (7259, 11280), (7320, 11186), (7896, 10370), (7990, 10248), (8296, 9870), (8540, 9588), (8601, 9520)]