20422575

素因数分解:

$3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:808

約数の個数: 36

約数和(自身を含む): 36898680

約数和(自身を除く): 16476105

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 139, 225, 417, 653, 695, 1251, 1959, 2085, 3265, 3475, 5877, 6255, 9795, 10425, 16325, 29385, 31275, 48975, 90767, 146925, 272301, 453835, 816903, 1361505, 2269175, 4084515, 6807525, 20422575]

約数ペア:

[(1, 20422575), (3, 6807525), (5, 4084515), (9, 2269175), (15, 1361505), (25, 816903), (45, 453835), (75, 272301), (139, 146925), (225, 90767), (417, 48975), (653, 31275), (695, 29385), (1251, 16325), (1959, 10425), (2085, 9795), (3265, 6255), (3475, 5877)]