20404675

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 27466992

約数和(自身を除く): 7062317

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 1171, 3485, 5855, 17425, 19907, 29275, 48011, 99535, 240055, 497675, 816187, 1200275, 4080935, 20404675]

約数ペア:

[(1, 20404675), (5, 4080935), (17, 1200275), (25, 816187), (41, 497675), (85, 240055), (205, 99535), (425, 48011), (697, 29275), (1025, 19907), (1171, 17425), (3485, 5855)]