51172775

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 65062800

約数和(自身を除く): 13890025

約数列:

[1, 5, 25, 89, 109, 211, 445, 545, 1055, 2225, 2725, 5275, 9701, 18779, 22999, 48505, 93895, 114995, 242525, 469475, 574975, 2046911, 10234555, 51172775]

約数ペア:

[(1, 51172775), (5, 10234555), (25, 2046911), (89, 574975), (109, 469475), (211, 242525), (445, 114995), (545, 93895), (1055, 48505), (2225, 22999), (2725, 18779), (5275, 9701)]