31018260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:87

約数の個数: 288

約数和(自身を含む): 118056960

約数和(自身を除く): 87038700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 23, 26, 28, 30, 35, 38, 39, 42, 46, 52, 57, 60, 65, 69, 70, 76, 78, 84, 91, 92, 95, 105, 114, 115, 130, 133, 138, 140, 156, 161, 169, 182, 190, 195, 210, 228, 230, 247, 260, 266, 273, 276, 285, 299, 322, 338, 345, 364, 380, 390, 399, 420, 437, 455, 460, 483, 494, 507, 532, 546, 570, 598, 644, 665, 676, 690, 741, 780, 798, 805, 845, 874, 897, 910, 966, 988, 1014, 1092, 1140, 1183, 1196, 1235, 1311, 1330, 1365, 1380, 1482, 1495, 1596, 1610, 1690, 1729, 1748, 1794, 1820, 1932, 1995, 2028, 2093, 2185, 2366, 2415, 2470, 2535, 2622, 2660, 2730, 2964, 2990, 3059, 3211, 3220, 3380, 3458, 3549, 3588, 3705, 3887, 3990, 4186, 4370, 4485, 4732, 4830, 4940, 5070, 5187, 5244, 5460, 5681, 5915, 5980, 6118, 6279, 6422, 6555, 6916, 7098, 7410, 7774, 7980, 8372, 8645, 8740, 8970, 9177, 9633, 9660, 10140, 10374, 10465, 11362, 11661, 11830, 12236, 12558, 12844, 13110, 14196, 14820, 15295, 15548, 16055, 17043, 17290, 17745, 17940, 18354, 19266, 19435, 20748, 20930, 22477, 22724, 23322, 23660, 25116, 25935, 26220, 27209, 28405, 30590, 31395, 32110, 34086, 34580, 35490, 36708, 38532, 38870, 39767, 41860, 44954, 45885, 46644, 48165, 51870, 54418, 56810, 58305, 61180, 62790, 64220, 67431, 68172, 70980, 73853, 77740, 79534, 81627, 85215, 89908, 91770, 96330, 103740, 108836, 112385, 113620, 116610, 119301, 125580, 134862, 136045, 147706, 159068, 163254, 170430, 183540, 192660, 198835, 221559, 224770, 233220, 238602, 269724, 272090, 295412, 326508, 337155, 340860, 369265, 397670, 408135, 443118, 449540, 477204, 516971, 544180, 596505, 674310, 738530, 795340, 816270, 886236, 1033942, 1107795, 1193010, 1348620, 1477060, 1550913, 1632540, 2067884, 2215590, 2386020, 2584855, 3101826, 4431180, 5169710, 6203652, 7754565, 10339420, 15509130, 31018260]

約数ペア:

[(1, 31018260), (2, 15509130), (3, 10339420), (4, 7754565), (5, 6203652), (6, 5169710), (7, 4431180), (10, 3101826), (12, 2584855), (13, 2386020), (14, 2215590), (15, 2067884), (19, 1632540), (20, 1550913), (21, 1477060), (23, 1348620), (26, 1193010), (28, 1107795), (30, 1033942), (35, 886236), (38, 816270), (39, 795340), (42, 738530), (46, 674310), (52, 596505), (57, 544180), (60, 516971), (65, 477204), (69, 449540), (70, 443118), (76, 408135), (78, 397670), (84, 369265), (91, 340860), (92, 337155), (95, 326508), (105, 295412), (114, 272090), (115, 269724), (130, 238602), (133, 233220), (138, 224770), (140, 221559), (156, 198835), (161, 192660), (169, 183540), (182, 170430), (190, 163254), (195, 159068), (210, 147706), (228, 136045), (230, 134862), (247, 125580), (260, 119301), (266, 116610), (273, 113620), (276, 112385), (285, 108836), (299, 103740), (322, 96330), (338, 91770), (345, 89908), (364, 85215), (380, 81627), (390, 79534), (399, 77740), (420, 73853), (437, 70980), (455, 68172), (460, 67431), (483, 64220), (494, 62790), (507, 61180), (532, 58305), (546, 56810), (570, 54418), (598, 51870), (644, 48165), (665, 46644), (676, 45885), (690, 44954), (741, 41860), (780, 39767), (798, 38870), (805, 38532), (845, 36708), (874, 35490), (897, 34580), (910, 34086), (966, 32110), (988, 31395), (1014, 30590), (1092, 28405), (1140, 27209), (1183, 26220), (1196, 25935), (1235, 25116), (1311, 23660), (1330, 23322), (1365, 22724), (1380, 22477), (1482, 20930), (1495, 20748), (1596, 19435), (1610, 19266), (1690, 18354), (1729, 17940), (1748, 17745), (1794, 17290), (1820, 17043), (1932, 16055), (1995, 15548), (2028, 15295), (2093, 14820), (2185, 14196), (2366, 13110), (2415, 12844), (2470, 12558), (2535, 12236), (2622, 11830), (2660, 11661), (2730, 11362), (2964, 10465), (2990, 10374), (3059, 10140), (3211, 9660), (3220, 9633), (3380, 9177), (3458, 8970), (3549, 8740), (3588, 8645), (3705, 8372), (3887, 7980), (3990, 7774), (4186, 7410), (4370, 7098), (4485, 6916), (4732, 6555), (4830, 6422), (4940, 6279), (5070, 6118), (5187, 5980), (5244, 5915), (5460, 5681)]