19641418420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75543917}}^1$

素因数の和:75543939

約数の個数: 24

約数和(自身を含む): 44419823784

約数和(自身を除く): 24778405364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75543917, 151087834, 302175668, 377719585, 755439170, 982070921, 1510878340, 1964141842, 3928283684, 4910354605, 9820709210, 19641418420]

約数ペア:

[(1, 19641418420), (2, 9820709210), (4, 4910354605), (5, 3928283684), (10, 1964141842), (13, 1510878340), (20, 982070921), (26, 755439170), (52, 377719585), (65, 302175668), (130, 151087834), (260, 75543917)]