20704410

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25561}}^1$

素因数の和:25580

約数の個数: 40

約数和(自身を含む): 55674036

約数和(自身を除く): 34969626

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25561, 51122, 76683, 127805, 153366, 230049, 255610, 383415, 460098, 690147, 766830, 1150245, 1380294, 2070441, 2300490, 3450735, 4140882, 6901470, 10352205, 20704410]

約数ペア:

[(1, 20704410), (2, 10352205), (3, 6901470), (5, 4140882), (6, 3450735), (9, 2300490), (10, 2070441), (15, 1380294), (18, 1150245), (27, 766830), (30, 690147), (45, 460098), (54, 383415), (81, 255610), (90, 230049), (135, 153366), (162, 127805), (270, 76683), (405, 51122), (810, 25561)]