2016985640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1\times {\mathrm{1229}}^1$

素因数の和:1790

約数の個数: 64

約数和(自身を含む): 4602906000

約数和(自身を除く): 2585920360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 461, 712, 890, 922, 1229, 1780, 1844, 2305, 2458, 3560, 3688, 4610, 4916, 6145, 9220, 9832, 12290, 18440, 24580, 41029, 49160, 82058, 109381, 164116, 205145, 218762, 328232, 410290, 437524, 546905, 566569, 820580, 875048, 1093810, 1133138, 1641160, 2187620, 2266276, 2832845, 4375240, 4532552, 5665690, 11331380, 22662760, 50424641, 100849282, 201698564, 252123205, 403397128, 504246410, 1008492820, 2016985640]

約数ペア:

[(1, 2016985640), (2, 1008492820), (4, 504246410), (5, 403397128), (8, 252123205), (10, 201698564), (20, 100849282), (40, 50424641), (89, 22662760), (178, 11331380), (356, 5665690), (445, 4532552), (461, 4375240), (712, 2832845), (890, 2266276), (922, 2187620), (1229, 1641160), (1780, 1133138), (1844, 1093810), (2305, 875048), (2458, 820580), (3560, 566569), (3688, 546905), (4610, 437524), (4916, 410290), (6145, 328232), (9220, 218762), (9832, 205145), (12290, 164116), (18440, 109381), (24580, 82058), (41029, 49160)]