78827920

素因数分解:

$2^4\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1597}}^1$

素因数の和:2227

約数の個数: 40

約数和(自身を含む): 183686904

約数和(自身を除く): 104858984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 617, 1234, 1597, 2468, 3085, 3194, 4936, 6170, 6388, 7985, 9872, 12340, 12776, 15970, 24680, 25552, 31940, 49360, 63880, 127760, 985349, 1970698, 3941396, 4926745, 7882792, 9853490, 15765584, 19706980, 39413960, 78827920]

約数ペア:

[(1, 78827920), (2, 39413960), (4, 19706980), (5, 15765584), (8, 9853490), (10, 7882792), (16, 4926745), (20, 3941396), (40, 1970698), (80, 985349), (617, 127760), (1234, 63880), (1597, 49360), (2468, 31940), (3085, 25552), (3194, 24680), (4936, 15970), (6170, 12776), (6388, 12340), (7985, 9872)]