1990302580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2030921}}^1$

素因数の和:2030944

約数の個数: 36

約数和(自身を含む): 4862027268

約数和(自身を除く): 2871724688

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2030921, 4061842, 8123684, 10154605, 14216447, 20309210, 28432894, 40618420, 56865788, 71082235, 99515129, 142164470, 199030258, 284328940, 398060516, 497575645, 995151290, 1990302580]

約数ペア:

[(1, 1990302580), (2, 995151290), (4, 497575645), (5, 398060516), (7, 284328940), (10, 199030258), (14, 142164470), (20, 99515129), (28, 71082235), (35, 56865788), (49, 40618420), (70, 28432894), (98, 20309210), (140, 14216447), (196, 10154605), (245, 8123684), (490, 4061842), (980, 2030921)]