84381920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 144

約数和(自身を含む): 237867840

約数和(自身を除く): 153485920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 49, 56, 70, 80, 94, 98, 112, 140, 160, 188, 196, 224, 229, 235, 245, 280, 329, 376, 392, 458, 470, 490, 560, 658, 752, 784, 916, 940, 980, 1120, 1145, 1316, 1504, 1568, 1603, 1645, 1832, 1880, 1960, 2290, 2303, 2632, 3206, 3290, 3664, 3760, 3920, 4580, 4606, 5264, 6412, 6580, 7328, 7520, 7840, 8015, 9160, 9212, 10528, 10763, 11221, 11515, 12824, 13160, 16030, 18320, 18424, 21526, 22442, 23030, 25648, 26320, 32060, 36640, 36848, 43052, 44884, 46060, 51296, 52640, 53815, 56105, 64120, 73696, 75341, 86104, 89768, 92120, 107630, 112210, 128240, 150682, 172208, 179536, 184240, 215260, 224420, 256480, 301364, 344416, 359072, 368480, 376705, 430520, 448840, 527387, 602728, 753410, 861040, 897680, 1054774, 1205456, 1506820, 1722080, 1795360, 2109548, 2410912, 2636935, 3013640, 4219096, 5273870, 6027280, 8438192, 10547740, 12054560, 16876384, 21095480, 42190960, 84381920]

約数ペア:

[(1, 84381920), (2, 42190960), (4, 21095480), (5, 16876384), (7, 12054560), (8, 10547740), (10, 8438192), (14, 6027280), (16, 5273870), (20, 4219096), (28, 3013640), (32, 2636935), (35, 2410912), (40, 2109548), (47, 1795360), (49, 1722080), (56, 1506820), (70, 1205456), (80, 1054774), (94, 897680), (98, 861040), (112, 753410), (140, 602728), (160, 527387), (188, 448840), (196, 430520), (224, 376705), (229, 368480), (235, 359072), (245, 344416), (280, 301364), (329, 256480), (376, 224420), (392, 215260), (458, 184240), (470, 179536), (490, 172208), (560, 150682), (658, 128240), (752, 112210), (784, 107630), (916, 92120), (940, 89768), (980, 86104), (1120, 75341), (1145, 73696), (1316, 64120), (1504, 56105), (1568, 53815), (1603, 52640), (1645, 51296), (1832, 46060), (1880, 44884), (1960, 43052), (2290, 36848), (2303, 36640), (2632, 32060), (3206, 26320), (3290, 25648), (3664, 23030), (3760, 22442), (3920, 21526), (4580, 18424), (4606, 18320), (5264, 16030), (6412, 13160), (6580, 12824), (7328, 11515), (7520, 11221), (7840, 10763), (8015, 10528), (9160, 9212)]