20248880

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1993}}^1$

素因数の和:2133

約数の個数: 40

約数和(自身を含む): 47473152

約数和(自身を除く): 27224272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1993, 2032, 2540, 3986, 5080, 7972, 9965, 10160, 15944, 19930, 31888, 39860, 79720, 159440, 253111, 506222, 1012444, 1265555, 2024888, 2531110, 4049776, 5062220, 10124440, 20248880]

約数ペア:

[(1, 20248880), (2, 10124440), (4, 5062220), (5, 4049776), (8, 2531110), (10, 2024888), (16, 1265555), (20, 1012444), (40, 506222), (80, 253111), (127, 159440), (254, 79720), (508, 39860), (635, 31888), (1016, 19930), (1270, 15944), (1993, 10160), (2032, 9965), (2540, 7972), (3986, 5080)]