79993940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307669}}^1$

素因数の和:307691

約数の個数: 24

約数和(自身を含む): 180909960

約数和(自身を除く): 100916020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307669, 615338, 1230676, 1538345, 3076690, 3999697, 6153380, 7999394, 15998788, 19998485, 39996970, 79993940]

約数ペア:

[(1, 79993940), (2, 39996970), (4, 19998485), (5, 15998788), (10, 7999394), (13, 6153380), (20, 3999697), (26, 3076690), (52, 1538345), (65, 1230676), (130, 615338), (260, 307669)]