25191225

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1087}}^1$

素因数の和:1206

約数の個数: 36

約数和(自身を含む): 45600256

約数和(自身を除く): 20409031

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 1087, 1545, 2575, 3261, 4635, 5435, 7725, 9783, 16305, 23175, 27175, 48915, 81525, 111961, 244575, 335883, 559805, 1007649, 1679415, 2799025, 5038245, 8397075, 25191225]

約数ペア:

[(1, 25191225), (3, 8397075), (5, 5038245), (9, 2799025), (15, 1679415), (25, 1007649), (45, 559805), (75, 335883), (103, 244575), (225, 111961), (309, 81525), (515, 48915), (927, 27175), (1087, 23175), (1545, 16305), (2575, 9783), (3261, 7725), (4635, 5435)]