2005080520

素因数分解:

$2^3\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{41189}}^1$

素因数の和:42417

約数の個数: 32

約数和(自身を含む): 4515247800

約数和(自身を除く): 2510167280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1217, 2434, 4868, 6085, 9736, 12170, 24340, 41189, 48680, 82378, 164756, 205945, 329512, 411890, 823780, 1647560, 50127013, 100254026, 200508052, 250635065, 401016104, 501270130, 1002540260, 2005080520]

約数ペア:

[(1, 2005080520), (2, 1002540260), (4, 501270130), (5, 401016104), (8, 250635065), (10, 200508052), (20, 100254026), (40, 50127013), (1217, 1647560), (2434, 823780), (4868, 411890), (6085, 329512), (9736, 205945), (12170, 164756), (24340, 82378), (41189, 48680)]