201942520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388351}}^1$

素因数の和:388375

約数の個数: 32

約数和(自身を含む): 489323520

約数和(自身を除く): 287381000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388351, 776702, 1553404, 1941755, 3106808, 3883510, 5048563, 7767020, 10097126, 15534040, 20194252, 25242815, 40388504, 50485630, 100971260, 201942520]

約数ペア:

[(1, 201942520), (2, 100971260), (4, 50485630), (5, 40388504), (8, 25242815), (10, 20194252), (13, 15534040), (20, 10097126), (26, 7767020), (40, 5048563), (52, 3883510), (65, 3106808), (104, 1941755), (130, 1553404), (260, 776702), (520, 388351)]