205123086620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{2188213}}^1$

素因数の和:2188374

約数の個数: 48

約数和(自身を含む): 444820141920

約数和(自身を除く): 239697055300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 545, 860, 1090, 2180, 4687, 9374, 18748, 23435, 46870, 93740, 2188213, 4376426, 8752852, 10941065, 21882130, 43764260, 94093159, 188186318, 238515217, 376372636, 470465795, 477030434, 940931590, 954060868, 1192576085, 1881863180, 2385152170, 4770304340, 10256154331, 20512308662, 41024617324, 51280771655, 102561543310, 205123086620]

約数ペア:

[(1, 205123086620), (2, 102561543310), (4, 51280771655), (5, 41024617324), (10, 20512308662), (20, 10256154331), (43, 4770304340), (86, 2385152170), (109, 1881863180), (172, 1192576085), (215, 954060868), (218, 940931590), (430, 477030434), (436, 470465795), (545, 376372636), (860, 238515217), (1090, 188186318), (2180, 94093159), (4687, 43764260), (9374, 21882130), (18748, 10941065), (23435, 8752852), (46870, 4376426), (93740, 2188213)]