20172856600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{180437}}^1$

素因数の和:180509

約数の個数: 96

約数和(自身を含む): 51684660720

約数和(自身を除く): 31511804120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 43, 50, 52, 65, 86, 100, 104, 130, 172, 200, 215, 260, 325, 344, 430, 520, 559, 650, 860, 1075, 1118, 1300, 1720, 2150, 2236, 2600, 2795, 4300, 4472, 5590, 8600, 11180, 13975, 22360, 27950, 55900, 111800, 180437, 360874, 721748, 902185, 1443496, 1804370, 2345681, 3608740, 4510925, 4691362, 7217480, 7758791, 9021850, 9382724, 11728405, 15517582, 18043700, 18765448, 23456810, 31035164, 36087400, 38793955, 46913620, 58642025, 62070328, 77587910, 93827240, 100864283, 117284050, 155175820, 193969775, 201728566, 234568100, 310351640, 387939550, 403457132, 469136200, 504321415, 775879100, 806914264, 1008642830, 1551758200, 2017285660, 2521607075, 4034571320, 5043214150, 10086428300, 20172856600]

約数ペア:

[(1, 20172856600), (2, 10086428300), (4, 5043214150), (5, 4034571320), (8, 2521607075), (10, 2017285660), (13, 1551758200), (20, 1008642830), (25, 806914264), (26, 775879100), (40, 504321415), (43, 469136200), (50, 403457132), (52, 387939550), (65, 310351640), (86, 234568100), (100, 201728566), (104, 193969775), (130, 155175820), (172, 117284050), (200, 100864283), (215, 93827240), (260, 77587910), (325, 62070328), (344, 58642025), (430, 46913620), (520, 38793955), (559, 36087400), (650, 31035164), (860, 23456810), (1075, 18765448), (1118, 18043700), (1300, 15517582), (1720, 11728405), (2150, 9382724), (2236, 9021850), (2600, 7758791), (2795, 7217480), (4300, 4691362), (4472, 4510925), (5590, 3608740), (8600, 2345681), (11180, 1804370), (13975, 1443496), (22360, 902185), (27950, 721748), (55900, 360874), (111800, 180437)]