139039216

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{280321}}^1$

素因数の和:280360

約数の個数: 20

約数和(自身を含む): 278079424

約数和(自身を除く): 139040208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 280321, 560642, 1121284, 2242568, 4485136, 8689951, 17379902, 34759804, 69519608, 139039216]

約数ペア:

[(1, 139039216), (2, 69519608), (4, 34759804), (8, 17379902), (16, 8689951), (31, 4485136), (62, 2242568), (124, 1121284), (248, 560642), (496, 280321)]