2109261040

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1\times {\mathrm{1031}}^1$

素因数の和:1390

約数の個数: 80

約数和(自身を含む): 4975395840

約数和(自身を除く): 2866134800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 239, 428, 478, 535, 856, 956, 1031, 1070, 1195, 1712, 1912, 2062, 2140, 2390, 3824, 4124, 4280, 4780, 5155, 8248, 8560, 9560, 10310, 16496, 19120, 20620, 25573, 41240, 51146, 82480, 102292, 110317, 127865, 204584, 220634, 246409, 255730, 409168, 441268, 492818, 511460, 551585, 882536, 985636, 1022920, 1103170, 1232045, 1765072, 1971272, 2045840, 2206340, 2464090, 3942544, 4412680, 4928180, 8825360, 9856360, 19712720, 26365763, 52731526, 105463052, 131828815, 210926104, 263657630, 421852208, 527315260, 1054630520, 2109261040]

約数ペア:

[(1, 2109261040), (2, 1054630520), (4, 527315260), (5, 421852208), (8, 263657630), (10, 210926104), (16, 131828815), (20, 105463052), (40, 52731526), (80, 26365763), (107, 19712720), (214, 9856360), (239, 8825360), (428, 4928180), (478, 4412680), (535, 3942544), (856, 2464090), (956, 2206340), (1031, 2045840), (1070, 1971272), (1195, 1765072), (1712, 1232045), (1912, 1103170), (2062, 1022920), (2140, 985636), (2390, 882536), (3824, 551585), (4124, 511460), (4280, 492818), (4780, 441268), (5155, 409168), (8248, 255730), (8560, 246409), (9560, 220634), (10310, 204584), (16496, 127865), (19120, 110317), (20620, 102292), (25573, 82480), (41240, 51146)]