40399940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{288571}}^1$

素因数の和:288587

約数の個数: 24

約数和(自身を含む): 96960192

約数和(自身を除く): 56560252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 288571, 577142, 1154284, 1442855, 2019997, 2885710, 4039994, 5771420, 8079988, 10099985, 20199970, 40399940]

約数ペア:

[(1, 40399940), (2, 20199970), (4, 10099985), (5, 8079988), (7, 5771420), (10, 4039994), (14, 2885710), (20, 2019997), (28, 1442855), (35, 1154284), (70, 577142), (140, 288571)]