20221508720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{259783}}^1$

素因数の和:259942

約数の個数: 80

約数和(自身を含む): 54118202880

約数和(自身を除く): 33896694160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1112, 1390, 1946, 2224, 2780, 3892, 4865, 5560, 7784, 9730, 11120, 15568, 19460, 38920, 77840, 259783, 519566, 1039132, 1298915, 1818481, 2078264, 2597830, 3636962, 4156528, 5195660, 7273924, 9092405, 10391320, 14547848, 18184810, 20782640, 29095696, 36109837, 36369620, 72219674, 72739240, 144439348, 145478480, 180549185, 252768859, 288878696, 361098370, 505537718, 577757392, 722196740, 1011075436, 1263844295, 1444393480, 2022150872, 2527688590, 2888786960, 4044301744, 5055377180, 10110754360, 20221508720]

約数ペア:

[(1, 20221508720), (2, 10110754360), (4, 5055377180), (5, 4044301744), (7, 2888786960), (8, 2527688590), (10, 2022150872), (14, 1444393480), (16, 1263844295), (20, 1011075436), (28, 722196740), (35, 577757392), (40, 505537718), (56, 361098370), (70, 288878696), (80, 252768859), (112, 180549185), (139, 145478480), (140, 144439348), (278, 72739240), (280, 72219674), (556, 36369620), (560, 36109837), (695, 29095696), (973, 20782640), (1112, 18184810), (1390, 14547848), (1946, 10391320), (2224, 9092405), (2780, 7273924), (3892, 5195660), (4865, 4156528), (5560, 3636962), (7784, 2597830), (9730, 2078264), (11120, 1818481), (15568, 1298915), (19460, 1039132), (38920, 519566), (77840, 259783)]