20278987196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{630017}}^1$

素因数の和:630653

約数の個数: 24

約数和(自身を含む): 38279893680

約数和(自身を除く): 18000906484

約数列:

[1, 2, 4, 13, 26, 52, 619, 1238, 2476, 8047, 16094, 32188, 630017, 1260034, 2520068, 8190221, 16380442, 32760884, 389980523, 779961046, 1559922092, 5069746799, 10139493598, 20278987196]

約数ペア:

[(1, 20278987196), (2, 10139493598), (4, 5069746799), (13, 1559922092), (26, 779961046), (52, 389980523), (619, 32760884), (1238, 16380442), (2476, 8190221), (8047, 2520068), (16094, 1260034), (32188, 630017)]