1639132580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1\times {\mathrm{3821}}^1$

素因数の和:4160

約数の個数: 48

約数和(自身を含む): 3496212720

約数和(自身を除く): 1857080140

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 241, 356, 445, 482, 890, 964, 1205, 1780, 2410, 3821, 4820, 7642, 15284, 19105, 21449, 38210, 42898, 76420, 85796, 107245, 214490, 340069, 428980, 680138, 920861, 1360276, 1700345, 1841722, 3400690, 3683444, 4604305, 6801380, 9208610, 18417220, 81956629, 163913258, 327826516, 409783145, 819566290, 1639132580]

約数ペア:

[(1, 1639132580), (2, 819566290), (4, 409783145), (5, 327826516), (10, 163913258), (20, 81956629), (89, 18417220), (178, 9208610), (241, 6801380), (356, 4604305), (445, 3683444), (482, 3400690), (890, 1841722), (964, 1700345), (1205, 1360276), (1780, 920861), (2410, 680138), (3821, 428980), (4820, 340069), (7642, 214490), (15284, 107245), (19105, 85796), (21449, 76420), (38210, 42898)]