207600025

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{8641}}^1$

素因数の和:8713

約数の個数: 18

約数和(自身を含む): 266026686

約数和(自身を除く): 58426661

約数列:

[1, 5, 25, 31, 155, 775, 961, 4805, 8641, 24025, 43205, 216025, 267871, 1339355, 6696775, 8304001, 41520005, 207600025]

約数ペア:

[(1, 207600025), (5, 41520005), (25, 8304001), (31, 6696775), (155, 1339355), (775, 267871), (961, 216025), (4805, 43205), (8641, 24025)]