2016520720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{681257}}^1$

素因数の和:681307

約数の個数: 40

約数和(自身を含む): 4815131544

約数和(自身を除く): 2798610824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 681257, 1362514, 2725028, 3406285, 5450056, 6812570, 10900112, 13625140, 25206509, 27250280, 50413018, 54500560, 100826036, 126032545, 201652072, 252065090, 403304144, 504130180, 1008260360, 2016520720]

約数ペア:

[(1, 2016520720), (2, 1008260360), (4, 504130180), (5, 403304144), (8, 252065090), (10, 201652072), (16, 126032545), (20, 100826036), (37, 54500560), (40, 50413018), (74, 27250280), (80, 25206509), (148, 13625140), (185, 10900112), (296, 6812570), (370, 5450056), (592, 3406285), (740, 2725028), (1480, 1362514), (2960, 681257)]