378020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 814968

約数和(自身を除く): 436948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 461, 820, 922, 1844, 2305, 4610, 9220, 18901, 37802, 75604, 94505, 189010, 378020]

約数ペア:

[(1, 378020), (2, 189010), (4, 94505), (5, 75604), (10, 37802), (20, 18901), (41, 9220), (82, 4610), (164, 2305), (205, 1844), (410, 922), (461, 820)]