25898925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 46747008

約数和(自身を除く): 20848083

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 101, 195, 263, 303, 325, 505, 789, 975, 1313, 1315, 1515, 2525, 3419, 3939, 3945, 6565, 6575, 7575, 10257, 17095, 19695, 19725, 26563, 32825, 51285, 79689, 85475, 98475, 132815, 256425, 345319, 398445, 664075, 1035957, 1726595, 1992225, 5179785, 8632975, 25898925]

約数ペア:

[(1, 25898925), (3, 8632975), (5, 5179785), (13, 1992225), (15, 1726595), (25, 1035957), (39, 664075), (65, 398445), (75, 345319), (101, 256425), (195, 132815), (263, 98475), (303, 85475), (325, 79689), (505, 51285), (789, 32825), (975, 26563), (1313, 19725), (1315, 19695), (1515, 17095), (2525, 10257), (3419, 7575), (3939, 6575), (3945, 6565)]