13620680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7919}}^1$

素因数の和:7973

約数の個数: 32

約数和(自身を含む): 31363200

約数和(自身を除く): 17742520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7919, 15838, 31676, 39595, 63352, 79190, 158380, 316760, 340517, 681034, 1362068, 1702585, 2724136, 3405170, 6810340, 13620680]

約数ペア:

[(1, 13620680), (2, 6810340), (4, 3405170), (5, 2724136), (8, 1702585), (10, 1362068), (20, 681034), (40, 340517), (43, 316760), (86, 158380), (172, 79190), (215, 63352), (344, 39595), (430, 31676), (860, 15838), (1720, 7919)]