19922720720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3109}}^1\times {\mathrm{11443}}^1$

素因数の和:14572

約数の個数: 80

約数和(自身を含む): 52959169920

約数和(自身を除く): 33036449200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3109, 6218, 11443, 12436, 15545, 21763, 22886, 24872, 31090, 43526, 45772, 49744, 57215, 62180, 80101, 87052, 91544, 108815, 114430, 124360, 160202, 174104, 183088, 217630, 228860, 248720, 320404, 348208, 400505, 435260, 457720, 640808, 801010, 870520, 915440, 1281616, 1602020, 1741040, 3204040, 6408080, 35576287, 71152574, 142305148, 177881435, 249034009, 284610296, 355762870, 498068018, 569220592, 711525740, 996136036, 1245170045, 1423051480, 1992272072, 2490340090, 2846102960, 3984544144, 4980680180, 9961360360, 19922720720]

約数ペア:

[(1, 19922720720), (2, 9961360360), (4, 4980680180), (5, 3984544144), (7, 2846102960), (8, 2490340090), (10, 1992272072), (14, 1423051480), (16, 1245170045), (20, 996136036), (28, 711525740), (35, 569220592), (40, 498068018), (56, 355762870), (70, 284610296), (80, 249034009), (112, 177881435), (140, 142305148), (280, 71152574), (560, 35576287), (3109, 6408080), (6218, 3204040), (11443, 1741040), (12436, 1602020), (15545, 1281616), (21763, 915440), (22886, 870520), (24872, 801010), (31090, 640808), (43526, 457720), (45772, 435260), (49744, 400505), (57215, 348208), (62180, 320404), (80101, 248720), (87052, 228860), (91544, 217630), (108815, 183088), (114430, 174104), (124360, 160202)]