208097890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20789}}^1$

素因数の和:20827

約数の個数: 64

約数和(自身を含む): 502951680

約数和(自身を除く): 294853790

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 5005, 10010, 20789, 41578, 103945, 145523, 207890, 228679, 270257, 291046, 457358, 540514, 727615, 1143395, 1351285, 1455230, 1600753, 1891799, 2286790, 2702570, 2972827, 3201506, 3783598, 5945654, 8003765, 9458995, 14864135, 16007530, 18917990, 20809789, 29728270, 41619578, 104048945, 208097890]

約数ペア:

[(1, 208097890), (2, 104048945), (5, 41619578), (7, 29728270), (10, 20809789), (11, 18917990), (13, 16007530), (14, 14864135), (22, 9458995), (26, 8003765), (35, 5945654), (55, 3783598), (65, 3201506), (70, 2972827), (77, 2702570), (91, 2286790), (110, 1891799), (130, 1600753), (143, 1455230), (154, 1351285), (182, 1143395), (286, 727615), (385, 540514), (455, 457358), (715, 291046), (770, 270257), (910, 228679), (1001, 207890), (1430, 145523), (2002, 103945), (5005, 41578), (10010, 20789)]