83656720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21341}}^1$

素因数の和:21368

約数の個数: 60

約数和(自身を含む): 226267884

約数和(自身を除く): 142611164

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21341, 42682, 85364, 106705, 149387, 170728, 213410, 298774, 341456, 426820, 597548, 746935, 853640, 1045709, 1195096, 1493870, 1707280, 2091418, 2390192, 2987740, 4182836, 5228545, 5975480, 8365672, 10457090, 11950960, 16731344, 20914180, 41828360, 83656720]

約数ペア:

[(1, 83656720), (2, 41828360), (4, 20914180), (5, 16731344), (7, 11950960), (8, 10457090), (10, 8365672), (14, 5975480), (16, 5228545), (20, 4182836), (28, 2987740), (35, 2390192), (40, 2091418), (49, 1707280), (56, 1493870), (70, 1195096), (80, 1045709), (98, 853640), (112, 746935), (140, 597548), (196, 426820), (245, 341456), (280, 298774), (392, 213410), (490, 170728), (560, 149387), (784, 106705), (980, 85364), (1960, 42682), (3920, 21341)]