81909800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1427}}^1$

素因数の和:1491

約数の個数: 96

約数和(自身を含む): 223110720

約数和(自身を除く): 141200920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 50, 56, 70, 82, 100, 140, 164, 175, 200, 205, 280, 287, 328, 350, 410, 574, 700, 820, 1025, 1148, 1400, 1427, 1435, 1640, 2050, 2296, 2854, 2870, 4100, 5708, 5740, 7135, 7175, 8200, 9989, 11416, 11480, 14270, 14350, 19978, 28540, 28700, 35675, 39956, 49945, 57080, 57400, 58507, 71350, 79912, 99890, 117014, 142700, 199780, 234028, 249725, 285400, 292535, 399560, 409549, 468056, 499450, 585070, 819098, 998900, 1170140, 1462675, 1638196, 1997800, 2047745, 2340280, 2925350, 3276392, 4095490, 5850700, 8190980, 10238725, 11701400, 16381960, 20477450, 40954900, 81909800]

約数ペア:

[(1, 81909800), (2, 40954900), (4, 20477450), (5, 16381960), (7, 11701400), (8, 10238725), (10, 8190980), (14, 5850700), (20, 4095490), (25, 3276392), (28, 2925350), (35, 2340280), (40, 2047745), (41, 1997800), (50, 1638196), (56, 1462675), (70, 1170140), (82, 998900), (100, 819098), (140, 585070), (164, 499450), (175, 468056), (200, 409549), (205, 399560), (280, 292535), (287, 285400), (328, 249725), (350, 234028), (410, 199780), (574, 142700), (700, 117014), (820, 99890), (1025, 79912), (1148, 71350), (1400, 58507), (1427, 57400), (1435, 57080), (1640, 49945), (2050, 39956), (2296, 35675), (2854, 28700), (2870, 28540), (4100, 19978), (5708, 14350), (5740, 14270), (7135, 11480), (7175, 11416), (8200, 9989)]