212345240

素因数分解:

$2^3\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{2551}}^1$

素因数の和:4643

約数の個数: 32

約数和(自身を含む): 478193760

約数和(自身を除く): 265848520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2081, 2551, 4162, 5102, 8324, 10204, 10405, 12755, 16648, 20408, 20810, 25510, 41620, 51020, 83240, 102040, 5308631, 10617262, 21234524, 26543155, 42469048, 53086310, 106172620, 212345240]

約数ペア:

[(1, 212345240), (2, 106172620), (4, 53086310), (5, 42469048), (8, 26543155), (10, 21234524), (20, 10617262), (40, 5308631), (2081, 102040), (2551, 83240), (4162, 51020), (5102, 41620), (8324, 25510), (10204, 20810), (10405, 20408), (12755, 16648)]