16509980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{859}}^1$

素因数の和:930

約数の個数: 36

約数和(自身を含む): 35867160

約数和(自身を除く): 19357180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 859, 961, 1718, 1922, 3436, 3844, 4295, 4805, 8590, 9610, 17180, 19220, 26629, 53258, 106516, 133145, 266290, 532580, 825499, 1650998, 3301996, 4127495, 8254990, 16509980]

約数ペア:

[(1, 16509980), (2, 8254990), (4, 4127495), (5, 3301996), (10, 1650998), (20, 825499), (31, 532580), (62, 266290), (124, 133145), (155, 106516), (310, 53258), (620, 26629), (859, 19220), (961, 17180), (1718, 9610), (1922, 8590), (3436, 4805), (3844, 4295)]