405767986

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{5023}}^1$

素因数の和:5290

約数の個数: 24

約数和(自身を含む): 661962240

約数和(自身を除く): 256194254

約数列:

[1, 2, 13, 26, 169, 239, 338, 478, 3107, 5023, 6214, 10046, 40391, 65299, 80782, 130598, 848887, 1200497, 1697774, 2400994, 15606461, 31212922, 202883993, 405767986]

約数ペア:

[(1, 405767986), (2, 202883993), (13, 31212922), (26, 15606461), (169, 2400994), (239, 1697774), (338, 1200497), (478, 848887), (3107, 130598), (5023, 80782), (6214, 65299), (10046, 40391)]