20951200

素因数分解:

$2^5\times 5^2\times {\mathrm{26189}}^1$

素因数の和:26209

約数の個数: 36

約数和(自身を含む): 51149070

約数和(自身を除く): 30197870

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26189, 52378, 104756, 130945, 209512, 261890, 419024, 523780, 654725, 838048, 1047560, 1309450, 2095120, 2618900, 4190240, 5237800, 10475600, 20951200]

約数ペア:

[(1, 20951200), (2, 10475600), (4, 5237800), (5, 4190240), (8, 2618900), (10, 2095120), (16, 1309450), (20, 1047560), (25, 838048), (32, 654725), (40, 523780), (50, 419024), (80, 261890), (100, 209512), (160, 130945), (200, 104756), (400, 52378), (800, 26189)]