123839440

素因数分解:

$2^4\times 5^1\times {\mathrm{1547993}}^1$

素因数の和:1548006

約数の個数: 20

約数和(自身を含む): 287926884

約数和(自身を除く): 164087444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1547993, 3095986, 6191972, 7739965, 12383944, 15479930, 24767888, 30959860, 61919720, 123839440]

約数ペア:

[(1, 123839440), (2, 61919720), (4, 30959860), (5, 24767888), (8, 15479930), (10, 12383944), (16, 7739965), (20, 6191972), (40, 3095986), (80, 1547993)]