139376

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 20

約数和(自身を含む): 279744

約数和(自身を除く): 140368

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 281, 496, 562, 1124, 2248, 4496, 8711, 17422, 34844, 69688, 139376]

約数ペア:

[(1, 139376), (2, 69688), (4, 34844), (8, 17422), (16, 8711), (31, 4496), (62, 2248), (124, 1124), (248, 562), (281, 496)]