648521920

素因数分解:

$2^6\times 5^1\times {\mathrm{2026631}}^1$

素因数の和:2026648

約数の個数: 28

約数和(自身を含む): 1544293584

約数和(自身を除く): 895771664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2026631, 4053262, 8106524, 10133155, 16213048, 20266310, 32426096, 40532620, 64852192, 81065240, 129704384, 162130480, 324260960, 648521920]

約数ペア:

[(1, 648521920), (2, 324260960), (4, 162130480), (5, 129704384), (8, 81065240), (10, 64852192), (16, 40532620), (20, 32426096), (32, 20266310), (40, 16213048), (64, 10133155), (80, 8106524), (160, 4053262), (320, 2026631)]