155555840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1381}}^1$

素因数の和:1419

約数の個数: 96

約数和(自身を含む): 407468880

約数和(自身を除く): 251913040

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, 352, 440, 512, 640, 704, 880, 1024, 1280, 1381, 1408, 1760, 2048, 2560, 2762, 2816, 3520, 5120, 5524, 5632, 6905, 7040, 10240, 11048, 11264, 13810, 14080, 15191, 22096, 22528, 27620, 28160, 30382, 44192, 55240, 56320, 60764, 75955, 88384, 110480, 112640, 121528, 151910, 176768, 220960, 243056, 303820, 353536, 441920, 486112, 607640, 707072, 883840, 972224, 1215280, 1414144, 1767680, 1944448, 2430560, 2828288, 3535360, 3888896, 4861120, 7070720, 7777792, 9722240, 14141440, 15555584, 19444480, 31111168, 38888960, 77777920, 155555840]

約数ペア:

[(1, 155555840), (2, 77777920), (4, 38888960), (5, 31111168), (8, 19444480), (10, 15555584), (11, 14141440), (16, 9722240), (20, 7777792), (22, 7070720), (32, 4861120), (40, 3888896), (44, 3535360), (55, 2828288), (64, 2430560), (80, 1944448), (88, 1767680), (110, 1414144), (128, 1215280), (160, 972224), (176, 883840), (220, 707072), (256, 607640), (320, 486112), (352, 441920), (440, 353536), (512, 303820), (640, 243056), (704, 220960), (880, 176768), (1024, 151910), (1280, 121528), (1381, 112640), (1408, 110480), (1760, 88384), (2048, 75955), (2560, 60764), (2762, 56320), (2816, 55240), (3520, 44192), (5120, 30382), (5524, 28160), (5632, 27620), (6905, 22528), (7040, 22096), (10240, 15191), (11048, 14080), (11264, 13810)]