61902815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{991}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 82744704

約数和(自身を除く): 20841889

約数列:

[1, 5, 13, 31, 65, 155, 403, 961, 991, 2015, 4805, 4955, 12493, 12883, 30721, 62465, 64415, 153605, 399373, 952351, 1996865, 4761755, 12380563, 61902815]

約数ペア:

[(1, 61902815), (5, 12380563), (13, 4761755), (31, 1996865), (65, 952351), (155, 399373), (403, 153605), (961, 64415), (991, 62465), (2015, 30721), (4805, 12883), (4955, 12493)]