206908880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83431}}^1$

素因数の和:83475

約数の個数: 40

約数和(自身を含む): 496587264

約数和(自身を除く): 289678384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 83431, 166862, 333724, 417155, 667448, 834310, 1334896, 1668620, 2586361, 3337240, 5172722, 6674480, 10345444, 12931805, 20690888, 25863610, 41381776, 51727220, 103454440, 206908880]

約数ペア:

[(1, 206908880), (2, 103454440), (4, 51727220), (5, 41381776), (8, 25863610), (10, 20690888), (16, 12931805), (20, 10345444), (31, 6674480), (40, 5172722), (62, 3337240), (80, 2586361), (124, 1668620), (155, 1334896), (248, 834310), (310, 667448), (496, 417155), (620, 333724), (1240, 166862), (2480, 83431)]