20723280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1093}}^1$

素因数の和:1188

約数の個数: 80

約数和(自身を含む): 65114880

約数和(自身を除く): 44391600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1093, 1185, 1264, 1580, 1896, 2186, 2370, 3160, 3279, 3792, 4372, 4740, 5465, 6320, 6558, 8744, 9480, 10930, 13116, 16395, 17488, 18960, 21860, 26232, 32790, 43720, 52464, 65580, 86347, 87440, 131160, 172694, 259041, 262320, 345388, 431735, 518082, 690776, 863470, 1036164, 1295205, 1381552, 1726940, 2072328, 2590410, 3453880, 4144656, 5180820, 6907760, 10361640, 20723280]

約数ペア:

[(1, 20723280), (2, 10361640), (3, 6907760), (4, 5180820), (5, 4144656), (6, 3453880), (8, 2590410), (10, 2072328), (12, 1726940), (15, 1381552), (16, 1295205), (20, 1036164), (24, 863470), (30, 690776), (40, 518082), (48, 431735), (60, 345388), (79, 262320), (80, 259041), (120, 172694), (158, 131160), (237, 87440), (240, 86347), (316, 65580), (395, 52464), (474, 43720), (632, 32790), (790, 26232), (948, 21860), (1093, 18960), (1185, 17488), (1264, 16395), (1580, 13116), (1896, 10930), (2186, 9480), (2370, 8744), (3160, 6558), (3279, 6320), (3792, 5465), (4372, 4740)]