680650520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41809}}^1$

素因数の和:41868

約数の個数: 64

約数和(自身を含む): 1715882400

約数和(自身を除く): 1035231880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 8140, 16280, 41809, 83618, 167236, 209045, 334472, 418090, 459899, 836180, 919798, 1546933, 1672360, 1839596, 2299495, 3093866, 3679192, 4598990, 6187732, 7734665, 9197980, 12375464, 15469330, 17016263, 18395960, 30938660, 34032526, 61877320, 68065052, 85081315, 136130104, 170162630, 340325260, 680650520]

約数ペア:

[(1, 680650520), (2, 340325260), (4, 170162630), (5, 136130104), (8, 85081315), (10, 68065052), (11, 61877320), (20, 34032526), (22, 30938660), (37, 18395960), (40, 17016263), (44, 15469330), (55, 12375464), (74, 9197980), (88, 7734665), (110, 6187732), (148, 4598990), (185, 3679192), (220, 3093866), (296, 2299495), (370, 1839596), (407, 1672360), (440, 1546933), (740, 919798), (814, 836180), (1480, 459899), (1628, 418090), (2035, 334472), (3256, 209045), (4070, 167236), (8140, 83618), (16280, 41809)]