256432012

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{221827}}^1$

素因数の和:221865

約数の個数: 18

約数和(自身を含む): 476708372

約数和(自身を除く): 220276360

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 221827, 443654, 887308, 3771059, 7542118, 15084236, 64108003, 128216006, 256432012]

約数ペア:

[(1, 256432012), (2, 128216006), (4, 64108003), (17, 15084236), (34, 7542118), (68, 3771059), (289, 887308), (578, 443654), (1156, 221827)]