31215525

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 56895168

約数和(自身を除く): 25679643

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 157, 165, 241, 275, 471, 723, 785, 825, 1205, 1727, 2355, 2651, 3615, 3925, 5181, 6025, 7953, 8635, 11775, 13255, 18075, 25905, 37837, 39765, 43175, 66275, 113511, 129525, 189185, 198825, 416207, 567555, 945925, 1248621, 2081035, 2837775, 6243105, 10405175, 31215525]

約数ペア:

[(1, 31215525), (3, 10405175), (5, 6243105), (11, 2837775), (15, 2081035), (25, 1248621), (33, 945925), (55, 567555), (75, 416207), (157, 198825), (165, 189185), (241, 129525), (275, 113511), (471, 66275), (723, 43175), (785, 39765), (825, 37837), (1205, 25905), (1727, 18075), (2355, 13255), (2651, 11775), (3615, 8635), (3925, 7953), (5181, 6025)]