64040990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{16987}}^1$

素因数の和:17036

約数の個数: 32

約数和(自身を含む): 128429280

約数和(自身を除く): 64388290

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 16987, 33974, 84935, 169870, 220831, 441662, 492623, 985246, 1104155, 2208310, 2463115, 4926230, 6404099, 12808198, 32020495, 64040990]

約数ペア:

[(1, 64040990), (2, 32020495), (5, 12808198), (10, 6404099), (13, 4926230), (26, 2463115), (29, 2208310), (58, 1104155), (65, 985246), (130, 492623), (145, 441662), (290, 220831), (377, 169870), (754, 84935), (1885, 33974), (3770, 16987)]