81505665

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{58427}}^1$

素因数の和:58469

約数の個数: 24

約数和(自身を含む): 145836288

約数和(自身を除く): 64330623

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 58427, 175281, 292135, 525843, 876405, 1811237, 2629215, 5433711, 9056185, 16301133, 27168555, 81505665]

約数ペア:

[(1, 81505665), (3, 27168555), (5, 16301133), (9, 9056185), (15, 5433711), (31, 2629215), (45, 1811237), (93, 876405), (155, 525843), (279, 292135), (465, 175281), (1395, 58427)]