18840770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3917}}^1$

素因数の和:3974

約数の個数: 32

約数和(自身を含む): 37518768

約数和(自身を除く): 18677998

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 3917, 4810, 7834, 19585, 39170, 50921, 101842, 144929, 254605, 289858, 509210, 724645, 1449290, 1884077, 3768154, 9420385, 18840770]

約数ペア:

[(1, 18840770), (2, 9420385), (5, 3768154), (10, 1884077), (13, 1449290), (26, 724645), (37, 509210), (65, 289858), (74, 254605), (130, 144929), (185, 101842), (370, 50921), (481, 39170), (962, 19585), (2405, 7834), (3917, 4810)]