138931088

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{280103}}^1$

素因数の和:280142

約数の個数: 20

約数和(自身を含む): 277863168

約数和(自身を除く): 138932080

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 280103, 560206, 1120412, 2240824, 4481648, 8683193, 17366386, 34732772, 69465544, 138931088]

約数ペア:

[(1, 138931088), (2, 69465544), (4, 34732772), (8, 17366386), (16, 8683193), (31, 4481648), (62, 2240824), (124, 1120412), (248, 560206), (496, 280103)]