81940112

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{119099}}^1$

素因数の和:119150

約数の個数: 20

約数和(自身を含む): 162452400

約数和(自身を除く): 80512288

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 119099, 238198, 476396, 952792, 1905584, 5121257, 10242514, 20485028, 40970056, 81940112]

約数ペア:

[(1, 81940112), (2, 40970056), (4, 20485028), (8, 10242514), (16, 5121257), (43, 1905584), (86, 952792), (172, 476396), (344, 238198), (688, 119099)]