20108360

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1789}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 45430200

約数和(自身を除く): 25321840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 1789, 2248, 2810, 3578, 5620, 7156, 8945, 11240, 14312, 17890, 35780, 71560, 502709, 1005418, 2010836, 2513545, 4021672, 5027090, 10054180, 20108360]

約数ペア:

[(1, 20108360), (2, 10054180), (4, 5027090), (5, 4021672), (8, 2513545), (10, 2010836), (20, 1005418), (40, 502709), (281, 71560), (562, 35780), (1124, 17890), (1405, 14312), (1789, 11240), (2248, 8945), (2810, 7156), (3578, 5620)]