408079160

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 934480800

約数和(自身を除く): 526401640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 137, 226, 274, 452, 548, 565, 659, 685, 904, 1096, 1130, 1318, 1370, 2260, 2636, 2740, 3295, 4520, 5272, 5480, 6590, 13180, 15481, 26360, 30962, 61924, 74467, 77405, 90283, 123848, 148934, 154810, 180566, 297868, 309620, 361132, 372335, 451415, 595736, 619240, 722264, 744670, 902830, 1489340, 1805660, 2978680, 3611320, 10201979, 20403958, 40807916, 51009895, 81615832, 102019790, 204039580, 408079160]

約数ペア:

[(1, 408079160), (2, 204039580), (4, 102019790), (5, 81615832), (8, 51009895), (10, 40807916), (20, 20403958), (40, 10201979), (113, 3611320), (137, 2978680), (226, 1805660), (274, 1489340), (452, 902830), (548, 744670), (565, 722264), (659, 619240), (685, 595736), (904, 451415), (1096, 372335), (1130, 361132), (1318, 309620), (1370, 297868), (2260, 180566), (2636, 154810), (2740, 148934), (3295, 123848), (4520, 90283), (5272, 77405), (5480, 74467), (6590, 61924), (13180, 30962), (15481, 26360)]