18810880

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 30722240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 167, 176, 220, 256, 320, 334, 352, 440, 512, 640, 668, 704, 835, 880, 1024, 1280, 1336, 1408, 1670, 1760, 1837, 2048, 2560, 2672, 2816, 3340, 3520, 3674, 5120, 5344, 5632, 6680, 7040, 7348, 9185, 10240, 10688, 11264, 13360, 14080, 14696, 18370, 21376, 22528, 26720, 28160, 29392, 36740, 42752, 53440, 56320, 58784, 73480, 85504, 106880, 112640, 117568, 146960, 171008, 213760, 235136, 293920, 342016, 427520, 470272, 587840, 855040, 940544, 1175680, 1710080, 1881088, 2351360, 3762176, 4702720, 9405440, 18810880]

約数ペア:

[(1, 18810880), (2, 9405440), (4, 4702720), (5, 3762176), (8, 2351360), (10, 1881088), (11, 1710080), (16, 1175680), (20, 940544), (22, 855040), (32, 587840), (40, 470272), (44, 427520), (55, 342016), (64, 293920), (80, 235136), (88, 213760), (110, 171008), (128, 146960), (160, 117568), (167, 112640), (176, 106880), (220, 85504), (256, 73480), (320, 58784), (334, 56320), (352, 53440), (440, 42752), (512, 36740), (640, 29392), (668, 28160), (704, 26720), (835, 22528), (880, 21376), (1024, 18370), (1280, 14696), (1336, 14080), (1408, 13360), (1670, 11264), (1760, 10688), (1837, 10240), (2048, 9185), (2560, 7348), (2672, 7040), (2816, 6680), (3340, 5632), (3520, 5344), (3674, 5120)]