204039580

素因数分解:

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

素因数の和:918

約数の個数: 48

約数和(自身を含む): 436091040

約数和(自身を除く): 232051460

約数列:

[1, 2, 4, 5, 10, 20, 113, 137, 226, 274, 452, 548, 565, 659, 685, 1130, 1318, 1370, 2260, 2636, 2740, 3295, 6590, 13180, 15481, 30962, 61924, 74467, 77405, 90283, 148934, 154810, 180566, 297868, 309620, 361132, 372335, 451415, 744670, 902830, 1489340, 1805660, 10201979, 20403958, 40807916, 51009895, 102019790, 204039580]

約数ペア:

[(1, 204039580), (2, 102019790), (4, 51009895), (5, 40807916), (10, 20403958), (20, 10201979), (113, 1805660), (137, 1489340), (226, 902830), (274, 744670), (452, 451415), (548, 372335), (565, 361132), (659, 309620), (685, 297868), (1130, 180566), (1318, 154810), (1370, 148934), (2260, 90283), (2636, 77405), (2740, 74467), (3295, 61924), (6590, 30962), (13180, 15481)]