20171830

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5881}}^1$

素因数の和:5909

約数の個数: 32

約数和(自身を含む): 42350400

約数和(自身を除く): 22178570

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5881, 11762, 29405, 41167, 58810, 82334, 205835, 288169, 411670, 576338, 1440845, 2017183, 2881690, 4034366, 10085915, 20171830]

約数ペア:

[(1, 20171830), (2, 10085915), (5, 4034366), (7, 2881690), (10, 2017183), (14, 1440845), (35, 576338), (49, 411670), (70, 288169), (98, 205835), (245, 82334), (343, 58810), (490, 41167), (686, 29405), (1715, 11762), (3430, 5881)]