20478872

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{857}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 40154400

約数和(自身を除く): 19675528

約数列:

[1, 2, 4, 8, 29, 58, 103, 116, 206, 232, 412, 824, 857, 1714, 2987, 3428, 5974, 6856, 11948, 23896, 24853, 49706, 88271, 99412, 176542, 198824, 353084, 706168, 2559859, 5119718, 10239436, 20478872]

約数ペア:

[(1, 20478872), (2, 10239436), (4, 5119718), (8, 2559859), (29, 706168), (58, 353084), (103, 198824), (116, 176542), (206, 99412), (232, 88271), (412, 49706), (824, 24853), (857, 23896), (1714, 11948), (2987, 6856), (3428, 5974)]