65781872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{316259}}^1$

素因数の和:316280

約数の個数: 20

約数和(自身を含む): 137256840

約数和(自身を除く): 71474968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 316259, 632518, 1265036, 2530072, 4111367, 5060144, 8222734, 16445468, 32890936, 65781872]

約数ペア:

[(1, 65781872), (2, 32890936), (4, 16445468), (8, 8222734), (13, 5060144), (16, 4111367), (26, 2530072), (52, 1265036), (104, 632518), (208, 316259)]