20412400

素因数分解:

$2^4\times 5^2\times {\mathrm{51031}}^1$

素因数の和:51049

約数の個数: 30

約数和(自身を含む): 49041752

約数和(自身を除く): 28629352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51031, 102062, 204124, 255155, 408248, 510310, 816496, 1020620, 1275775, 2041240, 2551550, 4082480, 5103100, 10206200, 20412400]

約数ペア:

[(1, 20412400), (2, 10206200), (4, 5103100), (5, 4082480), (8, 2551550), (10, 2041240), (16, 1275775), (20, 1020620), (25, 816496), (40, 510310), (50, 408248), (80, 255155), (100, 204124), (200, 102062), (400, 51031)]