20514830

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5981}}^1$

素因数の和:6009

約数の個数: 32

約数和(自身を含む): 43070400

約数和(自身を除く): 22555570

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5981, 11962, 29905, 41867, 59810, 83734, 209335, 293069, 418670, 586138, 1465345, 2051483, 2930690, 4102966, 10257415, 20514830]

約数ペア:

[(1, 20514830), (2, 10257415), (5, 4102966), (7, 2930690), (10, 2051483), (14, 1465345), (35, 586138), (49, 418670), (70, 293069), (98, 209335), (245, 83734), (343, 59810), (490, 41867), (686, 29905), (1715, 11962), (3430, 5981)]