280209008

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{261389}}^1$

素因数の和:261464

約数の個数: 20

約数和(自身を含む): 551010120

約数和(自身を除く): 270801112

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 261389, 522778, 1045556, 2091112, 4182224, 17513063, 35026126, 70052252, 140104504, 280209008]

約数ペア:

[(1, 280209008), (2, 140104504), (4, 70052252), (8, 35026126), (16, 17513063), (67, 4182224), (134, 2091112), (268, 1045556), (536, 522778), (1072, 261389)]