21722960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38791}}^1$

素因数の和:38811

約数の個数: 40

約数和(自身を含む): 57722496

約数和(自身を除く): 35999536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38791, 77582, 155164, 193955, 271537, 310328, 387910, 543074, 620656, 775820, 1086148, 1357685, 1551640, 2172296, 2715370, 3103280, 4344592, 5430740, 10861480, 21722960]

約数ペア:

[(1, 21722960), (2, 10861480), (4, 5430740), (5, 4344592), (7, 3103280), (8, 2715370), (10, 2172296), (14, 1551640), (16, 1357685), (20, 1086148), (28, 775820), (35, 620656), (40, 543074), (56, 387910), (70, 310328), (80, 271537), (112, 193955), (140, 155164), (280, 77582), (560, 38791)]