15667996880

素因数分解:

$2^4\times 5^1\times {\mathrm{195849961}}^1$

素因数の和:195849974

約数の個数: 20

約数和(自身を含む): 36428092932

約数和(自身を除く): 20760096052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195849961, 391699922, 783399844, 979249805, 1566799688, 1958499610, 3133599376, 3916999220, 7833998440, 15667996880]

約数ペア:

[(1, 15667996880), (2, 7833998440), (4, 3916999220), (5, 3133599376), (8, 1958499610), (10, 1566799688), (16, 979249805), (20, 783399844), (40, 391699922), (80, 195849961)]