189989888

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:299

約数の個数: 88

約数和(自身を含む): 420928704

約数和(自身を除く): 230938816

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 101, 128, 167, 176, 202, 256, 334, 352, 404, 512, 668, 704, 808, 1024, 1111, 1336, 1408, 1616, 1837, 2222, 2672, 2816, 3232, 3674, 4444, 5344, 5632, 6464, 7348, 8888, 10688, 11264, 12928, 14696, 16867, 17776, 21376, 25856, 29392, 33734, 35552, 42752, 51712, 58784, 67468, 71104, 85504, 103424, 117568, 134936, 142208, 171008, 185537, 235136, 269872, 284416, 371074, 470272, 539744, 568832, 742148, 940544, 1079488, 1137664, 1484296, 1881088, 2158976, 2968592, 4317952, 5937184, 8635904, 11874368, 17271808, 23748736, 47497472, 94994944, 189989888]

約数ペア:

[(1, 189989888), (2, 94994944), (4, 47497472), (8, 23748736), (11, 17271808), (16, 11874368), (22, 8635904), (32, 5937184), (44, 4317952), (64, 2968592), (88, 2158976), (101, 1881088), (128, 1484296), (167, 1137664), (176, 1079488), (202, 940544), (256, 742148), (334, 568832), (352, 539744), (404, 470272), (512, 371074), (668, 284416), (704, 269872), (808, 235136), (1024, 185537), (1111, 171008), (1336, 142208), (1408, 134936), (1616, 117568), (1837, 103424), (2222, 85504), (2672, 71104), (2816, 67468), (3232, 58784), (3674, 51712), (4444, 42752), (5344, 35552), (5632, 33734), (6464, 29392), (7348, 25856), (8888, 21376), (10688, 17776), (11264, 16867), (12928, 14696)]