21960640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5279}}^1$

素因数の和:5309

約数の個数: 56

約数和(自身を含む): 56327040

約数和(自身を除く): 34366400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 5279, 10558, 21116, 26395, 42232, 52790, 68627, 84464, 105580, 137254, 168928, 211160, 274508, 337856, 343135, 422320, 549016, 686270, 844640, 1098032, 1372540, 1689280, 2196064, 2745080, 4392128, 5490160, 10980320, 21960640]

約数ペア:

[(1, 21960640), (2, 10980320), (4, 5490160), (5, 4392128), (8, 2745080), (10, 2196064), (13, 1689280), (16, 1372540), (20, 1098032), (26, 844640), (32, 686270), (40, 549016), (52, 422320), (64, 343135), (65, 337856), (80, 274508), (104, 211160), (130, 168928), (160, 137254), (208, 105580), (260, 84464), (320, 68627), (416, 52790), (520, 42232), (832, 26395), (1040, 21116), (2080, 10558), (4160, 5279)]