127842520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245851}}^1$

素因数の和:245875

約数の個数: 32

約数和(自身を含む): 309773520

約数和(自身を除く): 181931000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 245851, 491702, 983404, 1229255, 1966808, 2458510, 3196063, 4917020, 6392126, 9834040, 12784252, 15980315, 25568504, 31960630, 63921260, 127842520]

約数ペア:

[(1, 127842520), (2, 63921260), (4, 31960630), (5, 25568504), (8, 15980315), (10, 12784252), (13, 9834040), (20, 6392126), (26, 4917020), (40, 3196063), (52, 2458510), (65, 1966808), (104, 1229255), (130, 983404), (260, 491702), (520, 245851)]