664210880

素因数分解:

$2^6\times 5^1\times {\mathrm{2075659}}^1$

素因数の和:2075676

約数の個数: 28

約数和(自身を含む): 1581652920

約数和(自身を除く): 917442040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2075659, 4151318, 8302636, 10378295, 16605272, 20756590, 33210544, 41513180, 66421088, 83026360, 132842176, 166052720, 332105440, 664210880]

約数ペア:

[(1, 664210880), (2, 332105440), (4, 166052720), (5, 132842176), (8, 83026360), (10, 66421088), (16, 41513180), (20, 33210544), (32, 20756590), (40, 16605272), (64, 10378295), (80, 8302636), (160, 4151318), (320, 2075659)]