20081325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 36729792

約数和(自身を除く): 16648467

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 101, 165, 241, 275, 303, 505, 723, 825, 1111, 1205, 1515, 2525, 2651, 3333, 3615, 5555, 6025, 7575, 7953, 13255, 16665, 18075, 24341, 27775, 39765, 66275, 73023, 83325, 121705, 198825, 267751, 365115, 608525, 803253, 1338755, 1825575, 4016265, 6693775, 20081325]

約数ペア:

[(1, 20081325), (3, 6693775), (5, 4016265), (11, 1825575), (15, 1338755), (25, 803253), (33, 608525), (55, 365115), (75, 267751), (101, 198825), (165, 121705), (241, 83325), (275, 73023), (303, 66275), (505, 39765), (723, 27775), (825, 24341), (1111, 18075), (1205, 16665), (1515, 13255), (2525, 7953), (2651, 7575), (3333, 6025), (3615, 5555)]