64090940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{38609}}^1$

素因数の和:38701

約数の個数: 24

約数和(自身を含む): 136216080

約数和(自身を除く): 72125140

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 38609, 77218, 154436, 193045, 386090, 772180, 3204547, 6409094, 12818188, 16022735, 32045470, 64090940]

約数ペア:

[(1, 64090940), (2, 32045470), (4, 16022735), (5, 12818188), (10, 6409094), (20, 3204547), (83, 772180), (166, 386090), (332, 193045), (415, 154436), (830, 77218), (1660, 38609)]