31280115

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1277}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 53001216

約数和(自身を除く): 21721101

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 213, 345, 355, 1065, 1277, 1633, 3831, 4899, 6385, 8165, 19155, 24495, 29371, 88113, 90667, 146855, 272001, 440565, 453335, 1360005, 2085341, 6256023, 10426705, 31280115]

約数ペア:

[(1, 31280115), (3, 10426705), (5, 6256023), (15, 2085341), (23, 1360005), (69, 453335), (71, 440565), (115, 272001), (213, 146855), (345, 90667), (355, 88113), (1065, 29371), (1277, 24495), (1633, 19155), (3831, 8165), (4899, 6385)]