18837650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 38346504

約数和(自身を除く): 19508854

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 73, 130, 146, 325, 365, 397, 650, 730, 794, 949, 1825, 1898, 1985, 3650, 3970, 4745, 5161, 9490, 9925, 10322, 19850, 23725, 25805, 28981, 47450, 51610, 57962, 129025, 144905, 258050, 289810, 376753, 724525, 753506, 1449050, 1883765, 3767530, 9418825, 18837650]

約数ペア:

[(1, 18837650), (2, 9418825), (5, 3767530), (10, 1883765), (13, 1449050), (25, 753506), (26, 724525), (50, 376753), (65, 289810), (73, 258050), (130, 144905), (146, 129025), (325, 57962), (365, 51610), (397, 47450), (650, 28981), (730, 25805), (794, 23725), (949, 19850), (1825, 10322), (1898, 9925), (1985, 9490), (3650, 5161), (3970, 4745)]