64740910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{1571}}^1$

素因数の和:1908

約数の個数: 32

約数和(自身を含む): 125973792

約数和(自身を除く): 61232882

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 634, 1571, 1585, 3142, 3170, 4121, 7855, 8242, 15710, 20423, 20605, 40846, 41210, 102115, 204230, 498007, 996014, 2490035, 4980070, 6474091, 12948182, 32370455, 64740910]

約数ペア:

[(1, 64740910), (2, 32370455), (5, 12948182), (10, 6474091), (13, 4980070), (26, 2490035), (65, 996014), (130, 498007), (317, 204230), (634, 102115), (1571, 41210), (1585, 40846), (3142, 20605), (3170, 20423), (4121, 15710), (7855, 8242)]