168563740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4457}}^1$

素因数の和:4558

約数の個数: 48

約数和(自身を含む): 371476224

約数和(自身を除く): 202912484

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 4457, 7564, 8914, 9455, 17828, 18910, 22285, 37820, 44570, 89140, 138167, 271877, 276334, 543754, 552668, 690835, 1087508, 1359385, 1381670, 2718770, 2763340, 5437540, 8428187, 16856374, 33712748, 42140935, 84281870, 168563740]

約数ペア:

[(1, 168563740), (2, 84281870), (4, 42140935), (5, 33712748), (10, 16856374), (20, 8428187), (31, 5437540), (61, 2763340), (62, 2718770), (122, 1381670), (124, 1359385), (155, 1087508), (244, 690835), (305, 552668), (310, 543754), (610, 276334), (620, 271877), (1220, 138167), (1891, 89140), (3782, 44570), (4457, 37820), (7564, 22285), (8914, 18910), (9455, 17828)]