128468925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 250233984

約数和(自身を除く): 121765059

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 167, 195, 225, 263, 325, 501, 585, 789, 835, 975, 1315, 1503, 2171, 2367, 2505, 2925, 3419, 3945, 4175, 6513, 6575, 7515, 10257, 10855, 11835, 12525, 17095, 19539, 19725, 30771, 32565, 37575, 43921, 51285, 54275, 59175, 85475, 97695, 131763, 153855, 162825, 219605, 256425, 395289, 488475, 570973, 658815, 769275, 1098025, 1712919, 1976445, 2854865, 3294075, 5138757, 8564595, 9882225, 14274325, 25693785, 42822975, 128468925]

約数ペア:

[(1, 128468925), (3, 42822975), (5, 25693785), (9, 14274325), (13, 9882225), (15, 8564595), (25, 5138757), (39, 3294075), (45, 2854865), (65, 1976445), (75, 1712919), (117, 1098025), (167, 769275), (195, 658815), (225, 570973), (263, 488475), (325, 395289), (501, 256425), (585, 219605), (789, 162825), (835, 153855), (975, 131763), (1315, 97695), (1503, 85475), (2171, 59175), (2367, 54275), (2505, 51285), (2925, 43921), (3419, 37575), (3945, 32565), (4175, 30771), (6513, 19725), (6575, 19539), (7515, 17095), (10257, 12525), (10855, 11835)]