81517676

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{26161}}^1$

素因数の和:26225

約数の個数: 24

約数和(自身を含む): 153832560

約数和(自身を除く): 72314884

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 26161, 52322, 104644, 497059, 994118, 1072601, 1988236, 2145202, 4290404, 20379419, 40758838, 81517676]

約数ペア:

[(1, 81517676), (2, 40758838), (4, 20379419), (19, 4290404), (38, 2145202), (41, 1988236), (76, 1072601), (82, 994118), (164, 497059), (779, 104644), (1558, 52322), (3116, 26161)]