20239100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1047

約数の個数: 72

約数和(自身を含む): 51975840

約数和(自身を除く): 31736740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 997, 1015, 1450, 1994, 2030, 2900, 3988, 4060, 4985, 5075, 6979, 9970, 10150, 13958, 19940, 20300, 24925, 27916, 28913, 34895, 49850, 57826, 69790, 99700, 115652, 139580, 144565, 174475, 202391, 289130, 348950, 404782, 578260, 697900, 722825, 809564, 1011955, 1445650, 2023910, 2891300, 4047820, 5059775, 10119550, 20239100]

約数ペア:

[(1, 20239100), (2, 10119550), (4, 5059775), (5, 4047820), (7, 2891300), (10, 2023910), (14, 1445650), (20, 1011955), (25, 809564), (28, 722825), (29, 697900), (35, 578260), (50, 404782), (58, 348950), (70, 289130), (100, 202391), (116, 174475), (140, 144565), (145, 139580), (175, 115652), (203, 99700), (290, 69790), (350, 57826), (406, 49850), (580, 34895), (700, 28913), (725, 27916), (812, 24925), (997, 20300), (1015, 19940), (1450, 13958), (1994, 10150), (2030, 9970), (2900, 6979), (3988, 5075), (4060, 4985)]