2720680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4029

約数の個数: 32

約数和(自身を含む): 6483240

約数和(自身を除く): 3762560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 4001, 8002, 16004, 20005, 32008, 40010, 68017, 80020, 136034, 160040, 272068, 340085, 544136, 680170, 1360340, 2720680]

約数ペア:

[(1, 2720680), (2, 1360340), (4, 680170), (5, 544136), (8, 340085), (10, 272068), (17, 160040), (20, 136034), (34, 80020), (40, 68017), (68, 40010), (85, 32008), (136, 20005), (170, 16004), (340, 8002), (680, 4001)]