1904540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{787}}^1$

素因数の和:818

約数の個数: 36

約数和(自身を含む): 4401768

約数和(自身を除く): 2497228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 787, 1210, 1574, 2420, 3148, 3935, 7870, 8657, 15740, 17314, 34628, 43285, 86570, 95227, 173140, 190454, 380908, 476135, 952270, 1904540]

約数ペア:

[(1, 1904540), (2, 952270), (4, 476135), (5, 380908), (10, 190454), (11, 173140), (20, 95227), (22, 86570), (44, 43285), (55, 34628), (110, 17314), (121, 15740), (220, 8657), (242, 7870), (484, 3935), (605, 3148), (787, 2420), (1210, 1574)]