201030520

素因数分解:

$2^3\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{3863}}^1$

素因数の和:5175

約数の個数: 32

約数和(自身を含む): 452783520

約数和(自身を除く): 251753000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1301, 2602, 3863, 5204, 6505, 7726, 10408, 13010, 15452, 19315, 26020, 30904, 38630, 52040, 77260, 154520, 5025763, 10051526, 20103052, 25128815, 40206104, 50257630, 100515260, 201030520]

約数ペア:

[(1, 201030520), (2, 100515260), (4, 50257630), (5, 40206104), (8, 25128815), (10, 20103052), (20, 10051526), (40, 5025763), (1301, 154520), (2602, 77260), (3863, 52040), (5204, 38630), (6505, 30904), (7726, 26020), (10408, 19315), (13010, 15452)]