20403216620

素因数分解:

$2^2\times 5^1\times {\mathrm{26881}}^1\times {\mathrm{37951}}^1$

素因数の和:64841

約数の個数: 24

約数和(自身を含む): 42849477888

約数和(自身を除く): 22446261268

約数列:

[1, 2, 4, 5, 10, 20, 26881, 37951, 53762, 75902, 107524, 134405, 151804, 189755, 268810, 379510, 537620, 759020, 1020160831, 2040321662, 4080643324, 5100804155, 10201608310, 20403216620]

約数ペア:

[(1, 20403216620), (2, 10201608310), (4, 5100804155), (5, 4080643324), (10, 2040321662), (20, 1020160831), (26881, 759020), (37951, 537620), (53762, 379510), (75902, 268810), (107524, 189755), (134405, 151804)]