81649600

素因数分解:

$2^6\times 5^2\times {\mathrm{51031}}^1$

素因数の和:51053

約数の個数: 42

約数和(自身を含む): 200912984

約数和(自身を除く): 119263384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 51031, 102062, 204124, 255155, 408248, 510310, 816496, 1020620, 1275775, 1632992, 2041240, 2551550, 3265984, 4082480, 5103100, 8164960, 10206200, 16329920, 20412400, 40824800, 81649600]

約数ペア:

[(1, 81649600), (2, 40824800), (4, 20412400), (5, 16329920), (8, 10206200), (10, 8164960), (16, 5103100), (20, 4082480), (25, 3265984), (32, 2551550), (40, 2041240), (50, 1632992), (64, 1275775), (80, 1020620), (100, 816496), (160, 510310), (200, 408248), (320, 255155), (400, 204124), (800, 102062), (1600, 51031)]