149999440

素因数分解:

$2^4\times 5^1\times {\mathrm{1874993}}^1$

素因数の和:1875006

約数の個数: 20

約数和(自身を含む): 348748884

約数和(自身を除く): 198749444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1874993, 3749986, 7499972, 9374965, 14999944, 18749930, 29999888, 37499860, 74999720, 149999440]

約数ペア:

[(1, 149999440), (2, 74999720), (4, 37499860), (5, 29999888), (8, 18749930), (10, 14999944), (16, 9374965), (20, 7499972), (40, 3749986), (80, 1874993)]