64425700

素因数分解:

$2^2\times 5^2\times {\mathrm{644257}}^1$

素因数の和:644271

約数の個数: 18

約数和(自身を含む): 139803986

約数和(自身を除く): 75378286

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 644257, 1288514, 2577028, 3221285, 6442570, 12885140, 16106425, 32212850, 64425700]

約数ペア:

[(1, 64425700), (2, 32212850), (4, 16106425), (5, 12885140), (10, 6442570), (20, 3221285), (25, 2577028), (50, 1288514), (100, 644257)]