20315600

素因数分解:

$2^4\times 5^2\times {\mathrm{50789}}^1$

素因数の和:50807

約数の個数: 30

約数和(自身を含む): 48809190

約数和(自身を除く): 28493590

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50789, 101578, 203156, 253945, 406312, 507890, 812624, 1015780, 1269725, 2031560, 2539450, 4063120, 5078900, 10157800, 20315600]

約数ペア:

[(1, 20315600), (2, 10157800), (4, 5078900), (5, 4063120), (8, 2539450), (10, 2031560), (16, 1269725), (20, 1015780), (25, 812624), (40, 507890), (50, 406312), (80, 253945), (100, 203156), (200, 101578), (400, 50789)]