64426480

素因数分解:

$2^4\times 5^1\times {\mathrm{805331}}^1$

素因数の和:805344

約数の個数: 20

約数和(自身を含む): 149791752

約数和(自身を除く): 85365272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 805331, 1610662, 3221324, 4026655, 6442648, 8053310, 12885296, 16106620, 32213240, 64426480]

約数ペア:

[(1, 64426480), (2, 32213240), (4, 16106620), (5, 12885296), (8, 8053310), (10, 6442648), (16, 4026655), (20, 3221324), (40, 1610662), (80, 805331)]