201231205

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{821}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 284083200

約数和(自身を除く): 82851995

約数列:

[1, 5, 7, 35, 47, 149, 235, 329, 745, 821, 1043, 1645, 4105, 5215, 5747, 7003, 28735, 35015, 38587, 49021, 122329, 192935, 245105, 270109, 611645, 856303, 1350545, 4281515, 5749463, 28747315, 40246241, 201231205]

約数ペア:

[(1, 201231205), (5, 40246241), (7, 28747315), (35, 5749463), (47, 4281515), (149, 1350545), (235, 856303), (329, 611645), (745, 270109), (821, 245105), (1043, 192935), (1645, 122329), (4105, 49021), (5215, 38587), (5747, 35015), (7003, 28735)]