8931440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 24373440

約数和(自身を除く): 15442000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 389, 410, 560, 574, 656, 778, 820, 1148, 1435, 1556, 1640, 1945, 2296, 2723, 2870, 3112, 3280, 3890, 4592, 5446, 5740, 6224, 7780, 10892, 11480, 13615, 15560, 15949, 21784, 22960, 27230, 31120, 31898, 43568, 54460, 63796, 79745, 108920, 111643, 127592, 159490, 217840, 223286, 255184, 318980, 446572, 558215, 637960, 893144, 1116430, 1275920, 1786288, 2232860, 4465720, 8931440]

約数ペア:

[(1, 8931440), (2, 4465720), (4, 2232860), (5, 1786288), (7, 1275920), (8, 1116430), (10, 893144), (14, 637960), (16, 558215), (20, 446572), (28, 318980), (35, 255184), (40, 223286), (41, 217840), (56, 159490), (70, 127592), (80, 111643), (82, 108920), (112, 79745), (140, 63796), (164, 54460), (205, 43568), (280, 31898), (287, 31120), (328, 27230), (389, 22960), (410, 21784), (560, 15949), (574, 15560), (656, 13615), (778, 11480), (820, 10892), (1148, 7780), (1435, 6224), (1556, 5740), (1640, 5446), (1945, 4592), (2296, 3890), (2723, 3280), (2870, 3112)]