217318360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{776137}}^1$

素因数の和:776155

約数の個数: 32

約数和(自身を含む): 558819360

約数和(自身を除く): 341501000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 776137, 1552274, 3104548, 3880685, 5432959, 6209096, 7761370, 10865918, 15522740, 21731836, 27164795, 31045480, 43463672, 54329590, 108659180, 217318360]

約数ペア:

[(1, 217318360), (2, 108659180), (4, 54329590), (5, 43463672), (7, 31045480), (8, 27164795), (10, 21731836), (14, 15522740), (20, 10865918), (28, 7761370), (35, 6209096), (40, 5432959), (56, 3880685), (70, 3104548), (140, 1552274), (280, 776137)]