639810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{7109}}^1$

素因数の和:7122

約数の個数: 24

約数和(自身を含む): 1663740

約数和(自身を除く): 1023930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 7109, 14218, 21327, 35545, 42654, 63981, 71090, 106635, 127962, 213270, 319905, 639810]

約数ペア:

[(1, 639810), (2, 319905), (3, 213270), (5, 127962), (6, 106635), (9, 71090), (10, 63981), (15, 42654), (18, 35545), (30, 21327), (45, 14218), (90, 7109)]