664756040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1103}}^1$

素因数の和:1207

約数の個数: 128

約数和(自身を含む): 1724889600

約数和(自身を除く): 1060133560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 61, 65, 76, 95, 104, 122, 130, 152, 190, 244, 247, 260, 305, 380, 488, 494, 520, 610, 760, 793, 988, 1103, 1159, 1220, 1235, 1586, 1976, 2206, 2318, 2440, 2470, 3172, 3965, 4412, 4636, 4940, 5515, 5795, 6344, 7930, 8824, 9272, 9880, 11030, 11590, 14339, 15067, 15860, 20957, 22060, 23180, 28678, 30134, 31720, 41914, 44120, 46360, 57356, 60268, 67283, 71695, 75335, 83828, 104785, 114712, 120536, 134566, 143390, 150670, 167656, 209570, 269132, 272441, 286780, 301340, 336415, 419140, 538264, 544882, 573560, 602680, 672830, 838280, 874679, 1089764, 1278377, 1345660, 1362205, 1749358, 2179528, 2556754, 2691320, 2724410, 3498716, 4373395, 5113508, 5448820, 6391885, 6997432, 8746790, 10227016, 10897640, 12783770, 16618901, 17493580, 25567540, 33237802, 34987160, 51135080, 66475604, 83094505, 132951208, 166189010, 332378020, 664756040]

約数ペア:

[(1, 664756040), (2, 332378020), (4, 166189010), (5, 132951208), (8, 83094505), (10, 66475604), (13, 51135080), (19, 34987160), (20, 33237802), (26, 25567540), (38, 17493580), (40, 16618901), (52, 12783770), (61, 10897640), (65, 10227016), (76, 8746790), (95, 6997432), (104, 6391885), (122, 5448820), (130, 5113508), (152, 4373395), (190, 3498716), (244, 2724410), (247, 2691320), (260, 2556754), (305, 2179528), (380, 1749358), (488, 1362205), (494, 1345660), (520, 1278377), (610, 1089764), (760, 874679), (793, 838280), (988, 672830), (1103, 602680), (1159, 573560), (1220, 544882), (1235, 538264), (1586, 419140), (1976, 336415), (2206, 301340), (2318, 286780), (2440, 272441), (2470, 269132), (3172, 209570), (3965, 167656), (4412, 150670), (4636, 143390), (4940, 134566), (5515, 120536), (5795, 114712), (6344, 104785), (7930, 83828), (8824, 75335), (9272, 71695), (9880, 67283), (11030, 60268), (11590, 57356), (14339, 46360), (15067, 44120), (15860, 41914), (20957, 31720), (22060, 30134), (23180, 28678)]