18880680

素因数分解:

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

素因数の和:73

約数の個数: 288

約数和(自身を含む): 75103200

約数和(自身を除く): 56222520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 49, 52, 56, 57, 60, 65, 70, 76, 78, 84, 91, 95, 98, 104, 105, 114, 120, 130, 133, 140, 147, 152, 156, 168, 169, 182, 190, 195, 196, 210, 228, 245, 247, 260, 266, 273, 280, 285, 294, 312, 338, 364, 380, 390, 392, 399, 420, 455, 456, 490, 494, 507, 520, 532, 546, 570, 588, 637, 665, 676, 728, 735, 741, 760, 780, 798, 840, 845, 910, 931, 980, 988, 1014, 1064, 1092, 1140, 1176, 1183, 1235, 1274, 1330, 1352, 1365, 1470, 1482, 1560, 1596, 1690, 1729, 1820, 1862, 1911, 1960, 1976, 1995, 2028, 2184, 2280, 2366, 2470, 2535, 2548, 2660, 2730, 2793, 2940, 2964, 3185, 3192, 3211, 3380, 3458, 3549, 3640, 3705, 3724, 3822, 3990, 4056, 4655, 4732, 4940, 5070, 5096, 5187, 5320, 5460, 5586, 5880, 5915, 5928, 6370, 6422, 6760, 6916, 7098, 7410, 7448, 7644, 7980, 8281, 8645, 9310, 9464, 9555, 9633, 9880, 10140, 10374, 10920, 11172, 11830, 12103, 12740, 12844, 13832, 13965, 14196, 14820, 15288, 15960, 16055, 16562, 17290, 17745, 18620, 19110, 19266, 20280, 20748, 22344, 22477, 23660, 24206, 24843, 25480, 25688, 25935, 27930, 28392, 29640, 32110, 33124, 34580, 35490, 36309, 37240, 38220, 38532, 41405, 41496, 44954, 47320, 48165, 48412, 49686, 51870, 55860, 60515, 64220, 66248, 67431, 69160, 70980, 72618, 76440, 77064, 82810, 89908, 96330, 96824, 99372, 103740, 111720, 112385, 121030, 124215, 128440, 134862, 141960, 145236, 157339, 165620, 179816, 181545, 192660, 198744, 207480, 224770, 242060, 248430, 269724, 290472, 314678, 331240, 337155, 363090, 385320, 449540, 472017, 484120, 496860, 539448, 629356, 674310, 726180, 786695, 899080, 944034, 993720, 1258712, 1348620, 1452360, 1573390, 1888068, 2360085, 2697240, 3146780, 3776136, 4720170, 6293560, 9440340, 18880680]

約数ペア:

[(1, 18880680), (2, 9440340), (3, 6293560), (4, 4720170), (5, 3776136), (6, 3146780), (7, 2697240), (8, 2360085), (10, 1888068), (12, 1573390), (13, 1452360), (14, 1348620), (15, 1258712), (19, 993720), (20, 944034), (21, 899080), (24, 786695), (26, 726180), (28, 674310), (30, 629356), (35, 539448), (38, 496860), (39, 484120), (40, 472017), (42, 449540), (49, 385320), (52, 363090), (56, 337155), (57, 331240), (60, 314678), (65, 290472), (70, 269724), (76, 248430), (78, 242060), (84, 224770), (91, 207480), (95, 198744), (98, 192660), (104, 181545), (105, 179816), (114, 165620), (120, 157339), (130, 145236), (133, 141960), (140, 134862), (147, 128440), (152, 124215), (156, 121030), (168, 112385), (169, 111720), (182, 103740), (190, 99372), (195, 96824), (196, 96330), (210, 89908), (228, 82810), (245, 77064), (247, 76440), (260, 72618), (266, 70980), (273, 69160), (280, 67431), (285, 66248), (294, 64220), (312, 60515), (338, 55860), (364, 51870), (380, 49686), (390, 48412), (392, 48165), (399, 47320), (420, 44954), (455, 41496), (456, 41405), (490, 38532), (494, 38220), (507, 37240), (520, 36309), (532, 35490), (546, 34580), (570, 33124), (588, 32110), (637, 29640), (665, 28392), (676, 27930), (728, 25935), (735, 25688), (741, 25480), (760, 24843), (780, 24206), (798, 23660), (840, 22477), (845, 22344), (910, 20748), (931, 20280), (980, 19266), (988, 19110), (1014, 18620), (1064, 17745), (1092, 17290), (1140, 16562), (1176, 16055), (1183, 15960), (1235, 15288), (1274, 14820), (1330, 14196), (1352, 13965), (1365, 13832), (1470, 12844), (1482, 12740), (1560, 12103), (1596, 11830), (1690, 11172), (1729, 10920), (1820, 10374), (1862, 10140), (1911, 9880), (1960, 9633), (1976, 9555), (1995, 9464), (2028, 9310), (2184, 8645), (2280, 8281), (2366, 7980), (2470, 7644), (2535, 7448), (2548, 7410), (2660, 7098), (2730, 6916), (2793, 6760), (2940, 6422), (2964, 6370), (3185, 5928), (3192, 5915), (3211, 5880), (3380, 5586), (3458, 5460), (3549, 5320), (3640, 5187), (3705, 5096), (3724, 5070), (3822, 4940), (3990, 4732), (4056, 4655)]