320881540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{853}}^1\times {\mathrm{2687}}^1$

素因数の和:3556

約数の個数: 48

約数和(自身を含む): 771305472

約数和(自身を除く): 450423932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 853, 1706, 2687, 3412, 4265, 5374, 5971, 8530, 10748, 11942, 13435, 17060, 18809, 23884, 26870, 29855, 37618, 53740, 59710, 75236, 94045, 119420, 188090, 376180, 2292011, 4584022, 9168044, 11460055, 16044077, 22920110, 32088154, 45840220, 64176308, 80220385, 160440770, 320881540]

約数ペア:

[(1, 320881540), (2, 160440770), (4, 80220385), (5, 64176308), (7, 45840220), (10, 32088154), (14, 22920110), (20, 16044077), (28, 11460055), (35, 9168044), (70, 4584022), (140, 2292011), (853, 376180), (1706, 188090), (2687, 119420), (3412, 94045), (4265, 75236), (5374, 59710), (5971, 53740), (8530, 37618), (10748, 29855), (11942, 26870), (13435, 23884), (17060, 18809)]