68628400

素因数分解:

$2^4\times 5^2\times {\mathrm{171571}}^1$

素因数の和:171589

約数の個数: 30

約数和(自身を含む): 164880692

約数和(自身を除く): 96252292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 171571, 343142, 686284, 857855, 1372568, 1715710, 2745136, 3431420, 4289275, 6862840, 8578550, 13725680, 17157100, 34314200, 68628400]

約数ペア:

[(1, 68628400), (2, 34314200), (4, 17157100), (5, 13725680), (8, 8578550), (10, 6862840), (16, 4289275), (20, 3431420), (25, 2745136), (40, 1715710), (50, 1372568), (80, 857855), (100, 686284), (200, 343142), (400, 171571)]