126346420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{154081}}^1$

素因数の和:154131

約数の個数: 24

約数和(自身を含む): 271800648

約数和(自身を除く): 145454228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 154081, 308162, 616324, 770405, 1540810, 3081620, 6317321, 12634642, 25269284, 31586605, 63173210, 126346420]

約数ペア:

[(1, 126346420), (2, 63173210), (4, 31586605), (5, 25269284), (10, 12634642), (20, 6317321), (41, 3081620), (82, 1540810), (164, 770405), (205, 616324), (410, 308162), (820, 154081)]