77901980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{299623}}^1$

素因数の和:299645

約数の個数: 24

約数和(自身を含む): 176178912

約数和(自身を除く): 98276932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 299623, 599246, 1198492, 1498115, 2996230, 3895099, 5992460, 7790198, 15580396, 19475495, 38950990, 77901980]

約数ペア:

[(1, 77901980), (2, 38950990), (4, 19475495), (5, 15580396), (10, 7790198), (13, 5992460), (20, 3895099), (26, 2996230), (52, 1498115), (65, 1198492), (130, 599246), (260, 299623)]