166536640

素因数分解:

$2^6\times 5^1\times {\mathrm{520427}}^1$

素因数の和:520444

約数の個数: 28

約数和(自身を含む): 396566136

約数和(自身を除く): 230029496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 520427, 1040854, 2081708, 2602135, 4163416, 5204270, 8326832, 10408540, 16653664, 20817080, 33307328, 41634160, 83268320, 166536640]

約数ペア:

[(1, 166536640), (2, 83268320), (4, 41634160), (5, 33307328), (8, 20817080), (10, 16653664), (16, 10408540), (20, 8326832), (32, 5204270), (40, 4163416), (64, 2602135), (80, 2081708), (160, 1040854), (320, 520427)]