40389860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{288499}}^1$

素因数の和:288515

約数の個数: 24

約数和(自身を含む): 96936000

約数和(自身を除く): 56546140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 288499, 576998, 1153996, 1442495, 2019493, 2884990, 4038986, 5769980, 8077972, 10097465, 20194930, 40389860]

約数ペア:

[(1, 40389860), (2, 20194930), (4, 10097465), (5, 8077972), (7, 5769980), (10, 4038986), (14, 2884990), (20, 2019493), (28, 1442495), (35, 1153996), (70, 576998), (140, 288499)]