25191375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 47443968

約数和(自身を除く): 22252593

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 125, 155, 165, 197, 275, 341, 375, 465, 591, 775, 825, 985, 1023, 1375, 1705, 2167, 2325, 2955, 3875, 4125, 4925, 5115, 6107, 6501, 8525, 10835, 11625, 14775, 18321, 24625, 25575, 30535, 32505, 42625, 54175, 67177, 73875, 91605, 127875, 152675, 162525, 201531, 270875, 335885, 458025, 763375, 812625, 1007655, 1679425, 2290125, 5038275, 8397125, 25191375]

約数ペア:

[(1, 25191375), (3, 8397125), (5, 5038275), (11, 2290125), (15, 1679425), (25, 1007655), (31, 812625), (33, 763375), (55, 458025), (75, 335885), (93, 270875), (125, 201531), (155, 162525), (165, 152675), (197, 127875), (275, 91605), (341, 73875), (375, 67177), (465, 54175), (591, 42625), (775, 32505), (825, 30535), (985, 25575), (1023, 24625), (1375, 18321), (1705, 14775), (2167, 11625), (2325, 10835), (2955, 8525), (3875, 6501), (4125, 6107), (4925, 5115)]