78323859

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:739

約数の個数: 24

約数和(自身を含む): 115031280

約数和(自身を除く): 36707421

約数列:

[1, 3, 9, 137, 139, 411, 417, 457, 1233, 1251, 1371, 4113, 19043, 57129, 62609, 63523, 171387, 187827, 190569, 563481, 571707, 8702651, 26107953, 78323859]

約数ペア:

[(1, 78323859), (3, 26107953), (9, 8702651), (137, 571707), (139, 563481), (411, 190569), (417, 187827), (457, 171387), (1233, 63523), (1251, 62609), (1371, 57129), (4113, 19043)]