25828240

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{647}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 60264000

約数和(自身を除く): 34435760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 647, 998, 1294, 1996, 2495, 2588, 3235, 3992, 4990, 5176, 6470, 7984, 9980, 10352, 12940, 19960, 25880, 39920, 51760, 322853, 645706, 1291412, 1614265, 2582824, 3228530, 5165648, 6457060, 12914120, 25828240]

約数ペア:

[(1, 25828240), (2, 12914120), (4, 6457060), (5, 5165648), (8, 3228530), (10, 2582824), (16, 1614265), (20, 1291412), (40, 645706), (80, 322853), (499, 51760), (647, 39920), (998, 25880), (1294, 19960), (1996, 12940), (2495, 10352), (2588, 9980), (3235, 7984), (3992, 6470), (4990, 5176)]