1632640

素因数分解:

$2^7\times 5^1\times {\mathrm{2551}}^1$

素因数の和:2570

約数の個数: 32

約数和(自身を含む): 3904560

約数和(自身を除く): 2271920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2551, 5102, 10204, 12755, 20408, 25510, 40816, 51020, 81632, 102040, 163264, 204080, 326528, 408160, 816320, 1632640]

約数ペア:

[(1, 1632640), (2, 816320), (4, 408160), (5, 326528), (8, 204080), (10, 163264), (16, 102040), (20, 81632), (32, 51020), (40, 40816), (64, 25510), (80, 20408), (128, 12755), (160, 10204), (320, 5102), (640, 2551)]