15500920

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1399}}^1$

素因数の和:1687

約数の個数: 32

約数和(自身を含む): 35028000

約数和(自身を除く): 19527080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1399, 2216, 2770, 2798, 5540, 5596, 6995, 11080, 11192, 13990, 27980, 55960, 387523, 775046, 1550092, 1937615, 3100184, 3875230, 7750460, 15500920]

約数ペア:

[(1, 15500920), (2, 7750460), (4, 3875230), (5, 3100184), (8, 1937615), (10, 1550092), (20, 775046), (40, 387523), (277, 55960), (554, 27980), (1108, 13990), (1385, 11192), (1399, 11080), (2216, 6995), (2770, 5596), (2798, 5540)]