1220445940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1245353}}^1$

素因数の和:1245376

約数の個数: 36

約数和(自身を含む): 2981377476

約数和(自身を除く): 1760931536

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1245353, 2490706, 4981412, 6226765, 8717471, 12453530, 17434942, 24907060, 34869884, 43587355, 61022297, 87174710, 122044594, 174349420, 244089188, 305111485, 610222970, 1220445940]

約数ペア:

[(1, 1220445940), (2, 610222970), (4, 305111485), (5, 244089188), (7, 174349420), (10, 122044594), (14, 87174710), (20, 61022297), (28, 43587355), (35, 34869884), (49, 24907060), (70, 17434942), (98, 12453530), (140, 8717471), (196, 6226765), (245, 4981412), (490, 2490706), (980, 1245353)]