209869520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12923}}^1$

素因数の和:12972

約数の個数: 80

約数和(自身を含む): 576927360

約数和(自身を除く): 367057840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 8120, 12923, 16240, 25846, 51692, 64615, 90461, 103384, 129230, 180922, 206768, 258460, 361844, 374767, 452305, 516920, 723688, 749534, 904610, 1033840, 1447376, 1499068, 1809220, 1873835, 2623369, 2998136, 3618440, 3747670, 5246738, 5996272, 7236880, 7495340, 10493476, 13116845, 14990680, 20986952, 26233690, 29981360, 41973904, 52467380, 104934760, 209869520]

約数ペア:

[(1, 209869520), (2, 104934760), (4, 52467380), (5, 41973904), (7, 29981360), (8, 26233690), (10, 20986952), (14, 14990680), (16, 13116845), (20, 10493476), (28, 7495340), (29, 7236880), (35, 5996272), (40, 5246738), (56, 3747670), (58, 3618440), (70, 2998136), (80, 2623369), (112, 1873835), (116, 1809220), (140, 1499068), (145, 1447376), (203, 1033840), (232, 904610), (280, 749534), (290, 723688), (406, 516920), (464, 452305), (560, 374767), (580, 361844), (812, 258460), (1015, 206768), (1160, 180922), (1624, 129230), (2030, 103384), (2320, 90461), (3248, 64615), (4060, 51692), (8120, 25846), (12923, 16240)]