19813080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 68889600

約数和(自身を除く): 49076520

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, 103, 105, 120, 140, 168, 206, 210, 229, 280, 309, 412, 420, 458, 515, 618, 687, 721, 824, 840, 916, 1030, 1145, 1236, 1374, 1442, 1545, 1603, 1832, 2060, 2163, 2290, 2472, 2748, 2884, 3090, 3206, 3435, 3605, 4120, 4326, 4580, 4809, 5496, 5768, 6180, 6412, 6870, 7210, 8015, 8652, 9160, 9618, 10815, 12360, 12824, 13740, 14420, 16030, 17304, 19236, 21630, 23587, 24045, 27480, 28840, 32060, 38472, 43260, 47174, 48090, 64120, 70761, 86520, 94348, 96180, 117935, 141522, 165109, 188696, 192360, 235870, 283044, 330218, 353805, 471740, 495327, 566088, 660436, 707610, 825545, 943480, 990654, 1320872, 1415220, 1651090, 1981308, 2476635, 2830440, 3302180, 3962616, 4953270, 6604360, 9906540, 19813080]

約数ペア:

[(1, 19813080), (2, 9906540), (3, 6604360), (4, 4953270), (5, 3962616), (6, 3302180), (7, 2830440), (8, 2476635), (10, 1981308), (12, 1651090), (14, 1415220), (15, 1320872), (20, 990654), (21, 943480), (24, 825545), (28, 707610), (30, 660436), (35, 566088), (40, 495327), (42, 471740), (56, 353805), (60, 330218), (70, 283044), (84, 235870), (103, 192360), (105, 188696), (120, 165109), (140, 141522), (168, 117935), (206, 96180), (210, 94348), (229, 86520), (280, 70761), (309, 64120), (412, 48090), (420, 47174), (458, 43260), (515, 38472), (618, 32060), (687, 28840), (721, 27480), (824, 24045), (840, 23587), (916, 21630), (1030, 19236), (1145, 17304), (1236, 16030), (1374, 14420), (1442, 13740), (1545, 12824), (1603, 12360), (1832, 10815), (2060, 9618), (2163, 9160), (2290, 8652), (2472, 8015), (2748, 7210), (2884, 6870), (3090, 6412), (3206, 6180), (3435, 5768), (3605, 5496), (4120, 4809), (4326, 4580)]