210880400

素因数分解:

$2^4\times 5^2\times {\mathrm{409}}^1\times {\mathrm{1289}}^1$

素因数の和:1716

約数の個数: 60

約数和(自身を含む): 508272900

約数和(自身を除く): 297392500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 409, 818, 1289, 1636, 2045, 2578, 3272, 4090, 5156, 6445, 6544, 8180, 10225, 10312, 12890, 16360, 20450, 20624, 25780, 32225, 32720, 40900, 51560, 64450, 81800, 103120, 128900, 163600, 257800, 515600, 527201, 1054402, 2108804, 2636005, 4217608, 5272010, 8435216, 10544020, 13180025, 21088040, 26360050, 42176080, 52720100, 105440200, 210880400]

約数ペア:

[(1, 210880400), (2, 105440200), (4, 52720100), (5, 42176080), (8, 26360050), (10, 21088040), (16, 13180025), (20, 10544020), (25, 8435216), (40, 5272010), (50, 4217608), (80, 2636005), (100, 2108804), (200, 1054402), (400, 527201), (409, 515600), (818, 257800), (1289, 163600), (1636, 128900), (2045, 103120), (2578, 81800), (3272, 64450), (4090, 51560), (5156, 40900), (6445, 32720), (6544, 32225), (8180, 25780), (10225, 20624), (10312, 20450), (12890, 16360)]