27981375

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 22337985

約数列:

[1, 3, 5, 15, 25, 29, 31, 75, 83, 87, 93, 125, 145, 155, 249, 375, 415, 435, 465, 725, 775, 899, 1245, 2075, 2175, 2325, 2407, 2573, 2697, 3625, 3875, 4495, 6225, 7221, 7719, 10375, 10875, 11625, 12035, 12865, 13485, 22475, 31125, 36105, 38595, 60175, 64325, 67425, 74617, 112375, 180525, 192975, 223851, 300875, 321625, 337125, 373085, 902625, 964875, 1119255, 1865425, 5596275, 9327125, 27981375]

約数ペア:

[(1, 27981375), (3, 9327125), (5, 5596275), (15, 1865425), (25, 1119255), (29, 964875), (31, 902625), (75, 373085), (83, 337125), (87, 321625), (93, 300875), (125, 223851), (145, 192975), (155, 180525), (249, 112375), (375, 74617), (415, 67425), (435, 64325), (465, 60175), (725, 38595), (775, 36105), (899, 31125), (1245, 22475), (2075, 13485), (2175, 12865), (2325, 12035), (2407, 11625), (2573, 10875), (2697, 10375), (3625, 7719), (3875, 7221), (4495, 6225)]