40543420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20071}}^1$

素因数の和:20181

約数の個数: 24

約数和(自身を含む): 85988448

約数和(自身を除く): 45445028

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 20071, 40142, 80284, 100355, 200710, 401420, 2027171, 4054342, 8108684, 10135855, 20271710, 40543420]

約数ペア:

[(1, 40543420), (2, 20271710), (4, 10135855), (5, 8108684), (10, 4054342), (20, 2027171), (101, 401420), (202, 200710), (404, 100355), (505, 80284), (1010, 40142), (2020, 20071)]