19972125

素因数分解:

$3^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 36966384

約数和(自身を除く): 16994259

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 125, 205, 225, 369, 375, 433, 615, 1025, 1125, 1299, 1845, 2165, 3075, 3897, 5125, 6495, 9225, 10825, 15375, 17753, 19485, 32475, 46125, 53259, 54125, 88765, 97425, 159777, 162375, 266295, 443825, 487125, 798885, 1331475, 2219125, 3994425, 6657375, 19972125]

約数ペア:

[(1, 19972125), (3, 6657375), (5, 3994425), (9, 2219125), (15, 1331475), (25, 798885), (41, 487125), (45, 443825), (75, 266295), (123, 162375), (125, 159777), (205, 97425), (225, 88765), (369, 54125), (375, 53259), (433, 46125), (615, 32475), (1025, 19485), (1125, 17753), (1299, 15375), (1845, 10825), (2165, 9225), (3075, 6495), (3897, 5125)]