256202320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2671}}^1$

素因数の和:2804

約数の個数: 80

約数和(自身を含む): 656029440

約数和(自身を除く): 399827120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 218, 220, 436, 440, 545, 872, 880, 1090, 1199, 1744, 2180, 2398, 2671, 4360, 4796, 5342, 5995, 8720, 9592, 10684, 11990, 13355, 19184, 21368, 23980, 26710, 29381, 42736, 47960, 53420, 58762, 95920, 106840, 117524, 146905, 213680, 235048, 291139, 293810, 470096, 582278, 587620, 1164556, 1175240, 1455695, 2329112, 2350480, 2911390, 3202529, 4658224, 5822780, 6405058, 11645560, 12810116, 16012645, 23291120, 25620232, 32025290, 51240464, 64050580, 128101160, 256202320]

約数ペア:

[(1, 256202320), (2, 128101160), (4, 64050580), (5, 51240464), (8, 32025290), (10, 25620232), (11, 23291120), (16, 16012645), (20, 12810116), (22, 11645560), (40, 6405058), (44, 5822780), (55, 4658224), (80, 3202529), (88, 2911390), (109, 2350480), (110, 2329112), (176, 1455695), (218, 1175240), (220, 1164556), (436, 587620), (440, 582278), (545, 470096), (872, 293810), (880, 291139), (1090, 235048), (1199, 213680), (1744, 146905), (2180, 117524), (2398, 106840), (2671, 95920), (4360, 58762), (4796, 53420), (5342, 47960), (5995, 42736), (8720, 29381), (9592, 26710), (10684, 23980), (11990, 21368), (13355, 19184)]