20081031880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5516767}}^1$

素因数の和:5516798

約数の個数: 64

約数和(自身を含む): 55609021440

約数和(自身を除く): 35527989560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5516767, 11033534, 22067068, 27583835, 38617369, 44134136, 55167670, 71717971, 77234738, 110335340, 143435942, 154469476, 193086845, 220670680, 286871884, 308938952, 358589855, 386173690, 502025797, 573743768, 717179710, 772347380, 1004051594, 1434359420, 1544694760, 2008103188, 2510128985, 2868718840, 4016206376, 5020257970, 10040515940, 20081031880]

約数ペア:

[(1, 20081031880), (2, 10040515940), (4, 5020257970), (5, 4016206376), (7, 2868718840), (8, 2510128985), (10, 2008103188), (13, 1544694760), (14, 1434359420), (20, 1004051594), (26, 772347380), (28, 717179710), (35, 573743768), (40, 502025797), (52, 386173690), (56, 358589855), (65, 308938952), (70, 286871884), (91, 220670680), (104, 193086845), (130, 154469476), (140, 143435942), (182, 110335340), (260, 77234738), (280, 71717971), (364, 55167670), (455, 44134136), (520, 38617369), (728, 27583835), (910, 22067068), (1820, 11033534), (3640, 5516767)]