18895965140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72676789}}^1$

素因数の和:72676811

約数の個数: 24

約数和(自身を含む): 42733952520

約数和(自身を除く): 23837987380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72676789, 145353578, 290707156, 363383945, 726767890, 944798257, 1453535780, 1889596514, 3779193028, 4723991285, 9447982570, 18895965140]

約数ペア:

[(1, 18895965140), (2, 9447982570), (4, 4723991285), (5, 3779193028), (10, 1889596514), (13, 1453535780), (20, 944798257), (26, 726767890), (52, 363383945), (65, 290707156), (130, 145353578), (260, 72676789)]