81248800

素因数分解:

$2^5\times 5^2\times {\mathrm{101561}}^1$

素因数の和:101581

約数の個数: 36

約数和(自身を含む): 198350586

約数和(自身を除く): 117101786

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 101561, 203122, 406244, 507805, 812488, 1015610, 1624976, 2031220, 2539025, 3249952, 4062440, 5078050, 8124880, 10156100, 16249760, 20312200, 40624400, 81248800]

約数ペア:

[(1, 81248800), (2, 40624400), (4, 20312200), (5, 16249760), (8, 10156100), (10, 8124880), (16, 5078050), (20, 4062440), (25, 3249952), (32, 2539025), (40, 2031220), (50, 1624976), (80, 1015610), (100, 812488), (160, 507805), (200, 406244), (400, 203122), (800, 101561)]