21163600

素因数分解:

$2^4\times 5^2\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:512

約数の個数: 60

約数和(自身を含む): 51321244

約数和(自身を除く): 30157644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 157, 200, 314, 337, 400, 628, 674, 785, 1256, 1348, 1570, 1685, 2512, 2696, 3140, 3370, 3925, 5392, 6280, 6740, 7850, 8425, 12560, 13480, 15700, 16850, 26960, 31400, 33700, 52909, 62800, 67400, 105818, 134800, 211636, 264545, 423272, 529090, 846544, 1058180, 1322725, 2116360, 2645450, 4232720, 5290900, 10581800, 21163600]

約数ペア:

[(1, 21163600), (2, 10581800), (4, 5290900), (5, 4232720), (8, 2645450), (10, 2116360), (16, 1322725), (20, 1058180), (25, 846544), (40, 529090), (50, 423272), (80, 264545), (100, 211636), (157, 134800), (200, 105818), (314, 67400), (337, 62800), (400, 52909), (628, 33700), (674, 31400), (785, 26960), (1256, 16850), (1348, 15700), (1570, 13480), (1685, 12560), (2512, 8425), (2696, 7850), (3140, 6740), (3370, 6280), (3925, 5392)]