20880148

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4583}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 39275712

約数和(自身を除く): 18395564

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4583, 9166, 18332, 77911, 155822, 307061, 311644, 614122, 1228244, 5220037, 10440074, 20880148]

約数ペア:

[(1, 20880148), (2, 10440074), (4, 5220037), (17, 1228244), (34, 614122), (67, 311644), (68, 307061), (134, 155822), (268, 77911), (1139, 18332), (2278, 9166), (4556, 4583)]