25785080

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7243}}^1$

素因数の和:7343

約数の個数: 32

約数和(自身を含む): 58676400

約数和(自身を除く): 32891320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 7243, 14486, 28972, 36215, 57944, 72430, 144860, 289720, 644627, 1289254, 2578508, 3223135, 5157016, 6446270, 12892540, 25785080]

約数ペア:

[(1, 25785080), (2, 12892540), (4, 6446270), (5, 5157016), (8, 3223135), (10, 2578508), (20, 1289254), (40, 644627), (89, 289720), (178, 144860), (356, 72430), (445, 57944), (712, 36215), (890, 28972), (1780, 14486), (3560, 7243)]