199469420

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{7129}}^1$

素因数の和:8537

約数の個数: 24

約数和(自身を含む): 419244000

約数和(自身を除く): 219774580

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2798, 5596, 6995, 7129, 13990, 14258, 27980, 28516, 35645, 71290, 142580, 9973471, 19946942, 39893884, 49867355, 99734710, 199469420]

約数ペア:

[(1, 199469420), (2, 99734710), (4, 49867355), (5, 39893884), (10, 19946942), (20, 9973471), (1399, 142580), (2798, 71290), (5596, 35645), (6995, 28516), (7129, 27980), (13990, 14258)]