20165953760

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{448531}}^1$

素因数の和:448827

約数の個数: 48

約数和(自身を含む): 47811717072

約数和(自身を除く): 27645763312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 562, 1124, 1405, 2248, 2810, 4496, 5620, 8992, 11240, 22480, 44960, 448531, 897062, 1794124, 2242655, 3588248, 4485310, 7176496, 8970620, 14352992, 17941240, 35882480, 71764960, 126037211, 252074422, 504148844, 630186055, 1008297688, 1260372110, 2016595376, 2520744220, 4033190752, 5041488440, 10082976880, 20165953760]

約数ペア:

[(1, 20165953760), (2, 10082976880), (4, 5041488440), (5, 4033190752), (8, 2520744220), (10, 2016595376), (16, 1260372110), (20, 1008297688), (32, 630186055), (40, 504148844), (80, 252074422), (160, 126037211), (281, 71764960), (562, 35882480), (1124, 17941240), (1405, 14352992), (2248, 8970620), (2810, 7176496), (4496, 4485310), (5620, 3588248), (8992, 2242655), (11240, 1794124), (22480, 897062), (44960, 448531)]