20302400

素因数分解:

$2^6\times 5^2\times {\mathrm{12689}}^1$

素因数の和:12711

約数の個数: 42

約数和(自身を含む): 49960530

約数和(自身を除く): 29658130

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12689, 25378, 50756, 63445, 101512, 126890, 203024, 253780, 317225, 406048, 507560, 634450, 812096, 1015120, 1268900, 2030240, 2537800, 4060480, 5075600, 10151200, 20302400]

約数ペア:

[(1, 20302400), (2, 10151200), (4, 5075600), (5, 4060480), (8, 2537800), (10, 2030240), (16, 1268900), (20, 1015120), (25, 812096), (32, 634450), (40, 507560), (50, 406048), (64, 317225), (80, 253780), (100, 203024), (160, 126890), (200, 101512), (320, 63445), (400, 50756), (800, 25378), (1600, 12689)]