31245825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 56524160

約数和(自身を除く): 25278335

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 73, 75, 195, 219, 325, 365, 439, 949, 975, 1095, 1317, 1825, 2195, 2847, 4745, 5475, 5707, 6585, 10975, 14235, 17121, 23725, 28535, 32047, 32925, 71175, 85605, 96141, 142675, 160235, 416611, 428025, 480705, 801175, 1249833, 2083055, 2403525, 6249165, 10415275, 31245825]

約数ペア:

[(1, 31245825), (3, 10415275), (5, 6249165), (13, 2403525), (15, 2083055), (25, 1249833), (39, 801175), (65, 480705), (73, 428025), (75, 416611), (195, 160235), (219, 142675), (325, 96141), (365, 85605), (439, 71175), (949, 32925), (975, 32047), (1095, 28535), (1317, 23725), (1825, 17121), (2195, 14235), (2847, 10975), (4745, 6585), (5475, 5707)]