1339778840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1970263}}^1$

素因数の和:1970291

約数の個数: 32

約数和(自身を含む): 3191827680

約数和(自身を除く): 1852048840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 1970263, 3940526, 7881052, 9851315, 15762104, 19702630, 33494471, 39405260, 66988942, 78810520, 133977884, 167472355, 267955768, 334944710, 669889420, 1339778840]

約数ペア:

[(1, 1339778840), (2, 669889420), (4, 334944710), (5, 267955768), (8, 167472355), (10, 133977884), (17, 78810520), (20, 66988942), (34, 39405260), (40, 33494471), (68, 19702630), (85, 15762104), (136, 9851315), (170, 7881052), (340, 3940526), (680, 1970263)]