28525575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1764

約数の個数: 48

約数和(自身を含む): 53809056

約数和(自身を除く): 25283481

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 195, 221, 255, 325, 425, 663, 975, 1105, 1275, 1721, 3315, 5163, 5525, 8605, 16575, 22373, 25815, 29257, 43025, 67119, 87771, 111865, 129075, 146285, 335595, 380341, 438855, 559325, 731425, 1141023, 1677975, 1901705, 2194275, 5705115, 9508525, 28525575]

約数ペア:

[(1, 28525575), (3, 9508525), (5, 5705115), (13, 2194275), (15, 1901705), (17, 1677975), (25, 1141023), (39, 731425), (51, 559325), (65, 438855), (75, 380341), (85, 335595), (195, 146285), (221, 129075), (255, 111865), (325, 87771), (425, 67119), (663, 43025), (975, 29257), (1105, 25815), (1275, 22373), (1721, 16575), (3315, 8605), (5163, 5525)]