256307164

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{221719}}^1$

素因数の和:221757

約数の個数: 18

約数和(自身を含む): 476476280

約数和(自身を除く): 220169116

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 221719, 443438, 886876, 3769223, 7538446, 15076892, 64076791, 128153582, 256307164]

約数ペア:

[(1, 256307164), (2, 128153582), (4, 64076791), (17, 15076892), (34, 7538446), (68, 3769223), (289, 886876), (578, 443438), (1156, 221719)]