15985875

素因数分解:

$3^1\times 5^3\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:972

約数の個数: 32

約数和(自身を含む): 27196416

約数和(自身を除く): 11210541

約数列:

[1, 3, 5, 15, 25, 47, 75, 125, 141, 235, 375, 705, 907, 1175, 2721, 3525, 4535, 5875, 13605, 17625, 22675, 42629, 68025, 113375, 127887, 213145, 340125, 639435, 1065725, 3197175, 5328625, 15985875]

約数ペア:

[(1, 15985875), (3, 5328625), (5, 3197175), (15, 1065725), (25, 639435), (47, 340125), (75, 213145), (125, 127887), (141, 113375), (235, 68025), (375, 42629), (705, 22675), (907, 17625), (1175, 13605), (2721, 5875), (3525, 4535)]