31128165

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7951}}^1$

素因数の和:7994

約数の個数: 32

約数和(自身を含む): 57254400

約数和(自身を除く): 26126235

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 7951, 23853, 39755, 71559, 119265, 214677, 230579, 357795, 691737, 1073385, 1152895, 2075211, 3458685, 6225633, 10376055, 31128165]

約数ペア:

[(1, 31128165), (3, 10376055), (5, 6225633), (9, 3458685), (15, 2075211), (27, 1152895), (29, 1073385), (45, 691737), (87, 357795), (135, 230579), (145, 214677), (261, 119265), (435, 71559), (783, 39755), (1305, 23853), (3915, 7951)]