39973840

素因数分解:

$2^4\times 5^1\times {\mathrm{499673}}^1$

素因数の和:499686

約数の個数: 20

約数和(自身を含む): 92939364

約数和(自身を除く): 52965524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499673, 999346, 1998692, 2498365, 3997384, 4996730, 7994768, 9993460, 19986920, 39973840]

約数ペア:

[(1, 39973840), (2, 19986920), (4, 9993460), (5, 7994768), (8, 4996730), (10, 3997384), (16, 2498365), (20, 1998692), (40, 999346), (80, 499673)]