7489990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 14400000

約数和(自身を除く): 6910010

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 499, 790, 998, 1501, 2495, 3002, 4990, 7505, 9481, 15010, 18962, 39421, 47405, 78842, 94810, 197105, 394210, 748999, 1497998, 3744995, 7489990]

約数ペア:

[(1, 7489990), (2, 3744995), (5, 1497998), (10, 748999), (19, 394210), (38, 197105), (79, 94810), (95, 78842), (158, 47405), (190, 39421), (395, 18962), (499, 15010), (790, 9481), (998, 7505), (1501, 4990), (2495, 3002)]