20755125

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 39424320

約数和(自身を除く): 18669195

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 375, 475, 855, 971, 1125, 1425, 2375, 2913, 4275, 4855, 7125, 8739, 14565, 18449, 21375, 24275, 43695, 55347, 72825, 92245, 121375, 166041, 218475, 276735, 364125, 461225, 830205, 1092375, 1383675, 2306125, 4151025, 6918375, 20755125]

約数ペア:

[(1, 20755125), (3, 6918375), (5, 4151025), (9, 2306125), (15, 1383675), (19, 1092375), (25, 830205), (45, 461225), (57, 364125), (75, 276735), (95, 218475), (125, 166041), (171, 121375), (225, 92245), (285, 72825), (375, 55347), (475, 43695), (855, 24275), (971, 21375), (1125, 18449), (1425, 14565), (2375, 8739), (2913, 7125), (4275, 4855)]