55438890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{142151}}^1$

素因数の和:142174

約数の個数: 32

約数和(自身を含む): 143289216

約数和(自身を除く): 87850326

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 142151, 284302, 426453, 710755, 852906, 1421510, 1847963, 2132265, 3695926, 4264530, 5543889, 9239815, 11087778, 18479630, 27719445, 55438890]

約数ペア:

[(1, 55438890), (2, 27719445), (3, 18479630), (5, 11087778), (6, 9239815), (10, 5543889), (13, 4264530), (15, 3695926), (26, 2132265), (30, 1847963), (39, 1421510), (65, 852906), (78, 710755), (130, 426453), (195, 284302), (390, 142151)]