139020920

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{12281}}^1$

素因数の和:12575

約数の個数: 32

約数和(自身を含む): 313927920

約数和(自身を除く): 174907000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 12281, 24562, 49124, 61405, 98248, 122810, 245620, 491240, 3475523, 6951046, 13902092, 17377615, 27804184, 34755230, 69510460, 139020920]

約数ペア:

[(1, 139020920), (2, 69510460), (4, 34755230), (5, 27804184), (8, 17377615), (10, 13902092), (20, 6951046), (40, 3475523), (283, 491240), (566, 245620), (1132, 122810), (1415, 98248), (2264, 61405), (2830, 49124), (5660, 24562), (11320, 12281)]