25550525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1021}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 42580608

約数和(自身を除く): 17030083

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 1001, 1021, 1925, 2275, 3575, 5005, 5105, 7147, 11231, 13273, 25025, 25525, 35735, 56155, 66365, 78617, 92911, 146003, 178675, 280775, 331825, 393085, 464555, 730015, 1022021, 1965425, 2322775, 3650075, 5110105, 25550525]

約数ペア:

[(1, 25550525), (5, 5110105), (7, 3650075), (11, 2322775), (13, 1965425), (25, 1022021), (35, 730015), (55, 464555), (65, 393085), (77, 331825), (91, 280775), (143, 178675), (175, 146003), (275, 92911), (325, 78617), (385, 66365), (455, 56155), (715, 35735), (1001, 25525), (1021, 25025), (1925, 13273), (2275, 11231), (3575, 7147), (5005, 5105)]