18701830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38167}}^1$

素因数の和:38188

約数の個数: 24

約数和(自身を含む): 39160368

約数和(自身を除く): 20458538

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38167, 76334, 190835, 267169, 381670, 534338, 1335845, 1870183, 2671690, 3740366, 9350915, 18701830]

約数ペア:

[(1, 18701830), (2, 9350915), (5, 3740366), (7, 2671690), (10, 1870183), (14, 1335845), (35, 534338), (49, 381670), (70, 267169), (98, 190835), (245, 76334), (490, 38167)]