20717370

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25577}}^1$

素因数の和:25596

約数の個数: 40

約数和(自身を含む): 55708884

約数和(自身を除く): 34991514

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25577, 51154, 76731, 127885, 153462, 230193, 255770, 383655, 460386, 690579, 767310, 1150965, 1381158, 2071737, 2301930, 3452895, 4143474, 6905790, 10358685, 20717370]

約数ペア:

[(1, 20717370), (2, 10358685), (3, 6905790), (5, 4143474), (6, 3452895), (9, 2301930), (10, 2071737), (15, 1381158), (18, 1150965), (27, 767310), (30, 690579), (45, 460386), (54, 383655), (81, 255770), (90, 230193), (135, 153462), (162, 127885), (270, 76731), (405, 51154), (810, 25577)]