71840440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 194088960

約数和(自身を除く): 122248520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 53, 56, 70, 94, 103, 106, 140, 188, 206, 212, 235, 265, 280, 329, 371, 376, 412, 424, 470, 515, 530, 658, 721, 742, 824, 940, 1030, 1060, 1316, 1442, 1484, 1645, 1855, 1880, 2060, 2120, 2491, 2632, 2884, 2968, 3290, 3605, 3710, 4120, 4841, 4982, 5459, 5768, 6580, 7210, 7420, 9682, 9964, 10918, 12455, 13160, 14420, 14840, 17437, 19364, 19928, 21836, 24205, 24910, 27295, 28840, 33887, 34874, 38213, 38728, 43672, 48410, 49820, 54590, 67774, 69748, 76426, 87185, 96820, 99640, 109180, 135548, 139496, 152852, 169435, 174370, 191065, 193640, 218360, 256573, 271096, 305704, 338870, 348740, 382130, 513146, 677740, 697480, 764260, 1026292, 1282865, 1355480, 1528520, 1796011, 2052584, 2565730, 3592022, 5131460, 7184044, 8980055, 10262920, 14368088, 17960110, 35920220, 71840440]

約数ペア:

[(1, 71840440), (2, 35920220), (4, 17960110), (5, 14368088), (7, 10262920), (8, 8980055), (10, 7184044), (14, 5131460), (20, 3592022), (28, 2565730), (35, 2052584), (40, 1796011), (47, 1528520), (53, 1355480), (56, 1282865), (70, 1026292), (94, 764260), (103, 697480), (106, 677740), (140, 513146), (188, 382130), (206, 348740), (212, 338870), (235, 305704), (265, 271096), (280, 256573), (329, 218360), (371, 193640), (376, 191065), (412, 174370), (424, 169435), (470, 152852), (515, 139496), (530, 135548), (658, 109180), (721, 99640), (742, 96820), (824, 87185), (940, 76426), (1030, 69748), (1060, 67774), (1316, 54590), (1442, 49820), (1484, 48410), (1645, 43672), (1855, 38728), (1880, 38213), (2060, 34874), (2120, 33887), (2491, 28840), (2632, 27295), (2884, 24910), (2968, 24205), (3290, 21836), (3605, 19928), (3710, 19364), (4120, 17437), (4841, 14840), (4982, 14420), (5459, 13160), (5768, 12455), (6580, 10918), (7210, 9964), (7420, 9682)]