312740620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{3499}}^1$

素因数の和:3658

約数の個数: 48

約数和(自身を含む): 679140000

約数和(自身を除く): 366399380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 1090, 2180, 3499, 4469, 6998, 8938, 13996, 17495, 17876, 22345, 34990, 44690, 69980, 89380, 143459, 286918, 381391, 573836, 717295, 762782, 1434590, 1525564, 1906955, 2869180, 3813910, 7627820, 15637031, 31274062, 62548124, 78185155, 156370310, 312740620]

約数ペア:

[(1, 312740620), (2, 156370310), (4, 78185155), (5, 62548124), (10, 31274062), (20, 15637031), (41, 7627820), (82, 3813910), (109, 2869180), (164, 1906955), (205, 1525564), (218, 1434590), (410, 762782), (436, 717295), (545, 573836), (820, 381391), (1090, 286918), (2180, 143459), (3499, 89380), (4469, 69980), (6998, 44690), (8938, 34990), (13996, 22345), (17495, 17876)]