2080991780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2123461}}^1$

素因数の和:2123484

約数の個数: 36

約数和(自身を含む): 5083568028

約数和(自身を除く): 3002576248

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2123461, 4246922, 8493844, 10617305, 14864227, 21234610, 29728454, 42469220, 59456908, 74321135, 104049589, 148642270, 208099178, 297284540, 416198356, 520247945, 1040495890, 2080991780]

約数ペア:

[(1, 2080991780), (2, 1040495890), (4, 520247945), (5, 416198356), (7, 297284540), (10, 208099178), (14, 148642270), (20, 104049589), (28, 74321135), (35, 59456908), (49, 42469220), (70, 29728454), (98, 21234610), (140, 14864227), (196, 10617305), (245, 8493844), (490, 4246922), (980, 2123461)]