81038775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 141419520

約数和(自身を除く): 60380745

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 109, 115, 327, 345, 431, 545, 575, 1293, 1635, 1725, 2155, 2507, 2725, 6465, 7521, 8175, 9913, 10775, 12535, 29739, 32325, 37605, 46979, 49565, 62675, 140937, 148695, 188025, 234895, 247825, 704685, 743475, 1080517, 1174475, 3241551, 3523425, 5402585, 16207755, 27012925, 81038775]

約数ペア:

[(1, 81038775), (3, 27012925), (5, 16207755), (15, 5402585), (23, 3523425), (25, 3241551), (69, 1174475), (75, 1080517), (109, 743475), (115, 704685), (327, 247825), (345, 234895), (431, 188025), (545, 148695), (575, 140937), (1293, 62675), (1635, 49565), (1725, 46979), (2155, 37605), (2507, 32325), (2725, 29739), (6465, 12535), (7521, 10775), (8175, 9913)]