20710361775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{396181}}^1$

素因数の和:396252

約数の個数: 48

約数和(自身を含む): 37139685408

約数和(自身を除く): 16429323633

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 205, 255, 425, 615, 697, 1025, 1275, 2091, 3075, 3485, 10455, 17425, 52275, 396181, 1188543, 1980905, 5942715, 6735077, 9904525, 16243421, 20205231, 29713575, 33675385, 48730263, 81217105, 101026155, 168376925, 243651315, 276138157, 406085525, 505130775, 828414471, 1218256575, 1380690785, 4142072355, 6903453925, 20710361775]

約数ペア:

[(1, 20710361775), (3, 6903453925), (5, 4142072355), (15, 1380690785), (17, 1218256575), (25, 828414471), (41, 505130775), (51, 406085525), (75, 276138157), (85, 243651315), (123, 168376925), (205, 101026155), (255, 81217105), (425, 48730263), (615, 33675385), (697, 29713575), (1025, 20205231), (1275, 16243421), (2091, 9904525), (3075, 6735077), (3485, 5942715), (10455, 1980905), (17425, 1188543), (52275, 396181)]