204920562840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{243953051}}^1$

素因数の和:243953072

約数の個数: 64

約数和(自身を含む): 702584789760

約数和(自身を除く): 497664226920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 243953051, 487906102, 731859153, 975812204, 1219765255, 1463718306, 1707671357, 1951624408, 2439530510, 2927436612, 3415342714, 3659295765, 4879061020, 5123014071, 5854873224, 6830685428, 7318591530, 8538356785, 9758122040, 10246028142, 13661370856, 14637183060, 17076713570, 20492056284, 25615070355, 29274366120, 34153427140, 40984112568, 51230140710, 68306854280, 102460281420, 204920562840]

約数ペア:

[(1, 204920562840), (2, 102460281420), (3, 68306854280), (4, 51230140710), (5, 40984112568), (6, 34153427140), (7, 29274366120), (8, 25615070355), (10, 20492056284), (12, 17076713570), (14, 14637183060), (15, 13661370856), (20, 10246028142), (21, 9758122040), (24, 8538356785), (28, 7318591530), (30, 6830685428), (35, 5854873224), (40, 5123014071), (42, 4879061020), (56, 3659295765), (60, 3415342714), (70, 2927436612), (84, 2439530510), (105, 1951624408), (120, 1707671357), (140, 1463718306), (168, 1219765255), (210, 975812204), (280, 731859153), (420, 487906102), (840, 243953051)]