18988156670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{683273}}^1$

素因数の和:683684

約数の個数: 32

約数和(自身を含む): 39159799488

約数和(自身を除く): 20171642818

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 397, 794, 1985, 2779, 3970, 5558, 13895, 27790, 683273, 1366546, 3416365, 4782911, 6832730, 9565822, 23914555, 47829110, 271259381, 542518762, 1356296905, 1898815667, 2712593810, 3797631334, 9494078335, 18988156670]

約数ペア:

[(1, 18988156670), (2, 9494078335), (5, 3797631334), (7, 2712593810), (10, 1898815667), (14, 1356296905), (35, 542518762), (70, 271259381), (397, 47829110), (794, 23914555), (1985, 9565822), (2779, 6832730), (3970, 4782911), (5558, 3416365), (13895, 1366546), (27790, 683273)]