68960840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 128

約数和(自身を含む): 183708000

約数和(自身を除く): 114747160

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 29, 34, 40, 52, 58, 65, 68, 85, 104, 116, 130, 136, 145, 170, 221, 232, 260, 269, 290, 340, 377, 442, 493, 520, 538, 580, 680, 754, 884, 986, 1076, 1105, 1160, 1345, 1508, 1768, 1885, 1972, 2152, 2210, 2465, 2690, 3016, 3497, 3770, 3944, 4420, 4573, 4930, 5380, 6409, 6994, 7540, 7801, 8840, 9146, 9860, 10760, 12818, 13988, 15080, 15602, 17485, 18292, 19720, 22865, 25636, 27976, 31204, 32045, 34970, 36584, 39005, 45730, 51272, 59449, 62408, 64090, 69940, 78010, 91460, 101413, 118898, 128180, 132617, 139880, 156020, 182920, 202826, 237796, 256360, 265234, 297245, 312040, 405652, 475592, 507065, 530468, 594490, 663085, 811304, 1014130, 1060936, 1188980, 1326170, 1724021, 2028260, 2377960, 2652340, 3448042, 4056520, 5304680, 6896084, 8620105, 13792168, 17240210, 34480420, 68960840]

約数ペア:

[(1, 68960840), (2, 34480420), (4, 17240210), (5, 13792168), (8, 8620105), (10, 6896084), (13, 5304680), (17, 4056520), (20, 3448042), (26, 2652340), (29, 2377960), (34, 2028260), (40, 1724021), (52, 1326170), (58, 1188980), (65, 1060936), (68, 1014130), (85, 811304), (104, 663085), (116, 594490), (130, 530468), (136, 507065), (145, 475592), (170, 405652), (221, 312040), (232, 297245), (260, 265234), (269, 256360), (290, 237796), (340, 202826), (377, 182920), (442, 156020), (493, 139880), (520, 132617), (538, 128180), (580, 118898), (680, 101413), (754, 91460), (884, 78010), (986, 69940), (1076, 64090), (1105, 62408), (1160, 59449), (1345, 51272), (1508, 45730), (1768, 39005), (1885, 36584), (1972, 34970), (2152, 32045), (2210, 31204), (2465, 27976), (2690, 25636), (3016, 22865), (3497, 19720), (3770, 18292), (3944, 17485), (4420, 15602), (4573, 15080), (4930, 13988), (5380, 12818), (6409, 10760), (6994, 9860), (7540, 9146), (7801, 8840)]