8121220

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1699}}^1$

素因数の和:1947

約数の個数: 24

約数和(自身を含む): 17136000

約数和(自身を除く): 9014780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 1699, 2390, 3398, 4780, 6796, 8495, 16990, 33980, 406061, 812122, 1624244, 2030305, 4060610, 8121220]

約数ペア:

[(1, 8121220), (2, 4060610), (4, 2030305), (5, 1624244), (10, 812122), (20, 406061), (239, 33980), (478, 16990), (956, 8495), (1195, 6796), (1699, 4780), (2390, 3398)]