19990322460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2582729}}^1$

素因数の和:2582787

約数の個数: 72

約数和(自身を含む): 62047505520

約数和(自身を除く): 42057183060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 2582729, 5165458, 7748187, 10330916, 12913645, 15496374, 23244561, 25827290, 30992748, 38740935, 46489122, 51654580, 77481870, 92978244, 111057347, 116222805, 154963740, 222114694, 232445610, 333172041, 444229388, 464891220, 555286735, 666344082, 999516123, 1110573470, 1332688164, 1665860205, 1999032246, 2221146940, 3331720410, 3998064492, 4997580615, 6663440820, 9995161230, 19990322460]

約数ペア:

[(1, 19990322460), (2, 9995161230), (3, 6663440820), (4, 4997580615), (5, 3998064492), (6, 3331720410), (9, 2221146940), (10, 1999032246), (12, 1665860205), (15, 1332688164), (18, 1110573470), (20, 999516123), (30, 666344082), (36, 555286735), (43, 464891220), (45, 444229388), (60, 333172041), (86, 232445610), (90, 222114694), (129, 154963740), (172, 116222805), (180, 111057347), (215, 92978244), (258, 77481870), (387, 51654580), (430, 46489122), (516, 38740935), (645, 30992748), (774, 25827290), (860, 23244561), (1290, 15496374), (1548, 12913645), (1935, 10330916), (2580, 7748187), (3870, 5165458), (7740, 2582729)]