19543040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1$

素因数の和:383

約数の個数: 88

約数和(自身を含む): 51289632

約数和(自身を除く): 31746592

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 347, 352, 440, 512, 640, 694, 704, 880, 1024, 1280, 1388, 1408, 1735, 1760, 2560, 2776, 2816, 3470, 3520, 3817, 5120, 5552, 5632, 6940, 7040, 7634, 11104, 11264, 13880, 14080, 15268, 19085, 22208, 27760, 28160, 30536, 38170, 44416, 55520, 56320, 61072, 76340, 88832, 111040, 122144, 152680, 177664, 222080, 244288, 305360, 355328, 444160, 488576, 610720, 888320, 977152, 1221440, 1776640, 1954304, 2442880, 3908608, 4885760, 9771520, 19543040]

約数ペア:

[(1, 19543040), (2, 9771520), (4, 4885760), (5, 3908608), (8, 2442880), (10, 1954304), (11, 1776640), (16, 1221440), (20, 977152), (22, 888320), (32, 610720), (40, 488576), (44, 444160), (55, 355328), (64, 305360), (80, 244288), (88, 222080), (110, 177664), (128, 152680), (160, 122144), (176, 111040), (220, 88832), (256, 76340), (320, 61072), (347, 56320), (352, 55520), (440, 44416), (512, 38170), (640, 30536), (694, 28160), (704, 27760), (880, 22208), (1024, 19085), (1280, 15268), (1388, 14080), (1408, 13880), (1735, 11264), (1760, 11104), (2560, 7634), (2776, 7040), (2816, 6940), (3470, 5632), (3520, 5552), (3817, 5120)]