81388788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{521723}}^1$

素因数の和:521743

約数の個数: 24

約数和(自身を含む): 204515808

約数和(自身を除く): 123127020

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 521723, 1043446, 1565169, 2086892, 3130338, 6260676, 6782399, 13564798, 20347197, 27129596, 40694394, 81388788]

約数ペア:

[(1, 81388788), (2, 40694394), (3, 27129596), (4, 20347197), (6, 13564798), (12, 6782399), (13, 6260676), (26, 3130338), (39, 2086892), (52, 1565169), (78, 1043446), (156, 521723)]