81487485

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31769}}^1$

素因数の和:31802

約数の個数: 32

約数和(自身を含む): 152496000

約数和(自身を除く): 71008515

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 31769, 95307, 158845, 285921, 476535, 603611, 857763, 1429605, 1810833, 3018055, 4288815, 5432499, 9054165, 16297497, 27162495, 81487485]

約数ペア:

[(1, 81487485), (3, 27162495), (5, 16297497), (9, 9054165), (15, 5432499), (19, 4288815), (27, 3018055), (45, 1810833), (57, 1429605), (95, 857763), (135, 603611), (171, 476535), (285, 285921), (513, 158845), (855, 95307), (2565, 31769)]