77681720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 182347200

約数和(自身を除く): 104665480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 167, 232, 290, 334, 401, 580, 668, 802, 835, 1160, 1336, 1604, 1670, 2005, 3208, 3340, 4010, 4843, 6680, 8020, 9686, 11629, 16040, 19372, 23258, 24215, 38744, 46516, 48430, 58145, 66967, 93032, 96860, 116290, 133934, 193720, 232580, 267868, 334835, 465160, 535736, 669670, 1339340, 1942043, 2678680, 3884086, 7768172, 9710215, 15536344, 19420430, 38840860, 77681720]

約数ペア:

[(1, 77681720), (2, 38840860), (4, 19420430), (5, 15536344), (8, 9710215), (10, 7768172), (20, 3884086), (29, 2678680), (40, 1942043), (58, 1339340), (116, 669670), (145, 535736), (167, 465160), (232, 334835), (290, 267868), (334, 232580), (401, 193720), (580, 133934), (668, 116290), (802, 96860), (835, 93032), (1160, 66967), (1336, 58145), (1604, 48430), (1670, 46516), (2005, 38744), (3208, 24215), (3340, 23258), (4010, 19372), (4843, 16040), (6680, 11629), (8020, 9686)]