201786520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388051}}^1$

素因数の和:388075

約数の個数: 32

約数和(自身を含む): 488945520

約数和(自身を除く): 287159000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388051, 776102, 1552204, 1940255, 3104408, 3880510, 5044663, 7761020, 10089326, 15522040, 20178652, 25223315, 40357304, 50446630, 100893260, 201786520]

約数ペア:

[(1, 201786520), (2, 100893260), (4, 50446630), (5, 40357304), (8, 25223315), (10, 20178652), (13, 15522040), (20, 10089326), (26, 7761020), (40, 5044663), (52, 3880510), (65, 3104408), (104, 1940255), (130, 1552204), (260, 776102), (520, 388051)]