420656

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:500

約数の個数: 20

約数和(自身を含む): 830304

約数和(自身を除く): 409648

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 431, 488, 862, 976, 1724, 3448, 6896, 26291, 52582, 105164, 210328, 420656]

約数ペア:

[(1, 420656), (2, 210328), (4, 105164), (8, 52582), (16, 26291), (61, 6896), (122, 3448), (244, 1724), (431, 976), (488, 862)]