7898420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4999}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 16800000

約数和(自身を除く): 8901580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 4999, 9998, 19996, 24995, 49990, 99980, 394921, 789842, 1579684, 1974605, 3949210, 7898420]

約数ペア:

[(1, 7898420), (2, 3949210), (4, 1974605), (5, 1579684), (10, 789842), (20, 394921), (79, 99980), (158, 49990), (316, 24995), (395, 19996), (790, 9998), (1580, 4999)]