40542980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47143}}^1$

素因数の和:47195

約数の個数: 24

約数和(自身を含む): 87122112

約数和(自身を除く): 46579132

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 47143, 94286, 188572, 235715, 471430, 942860, 2027149, 4054298, 8108596, 10135745, 20271490, 40542980]

約数ペア:

[(1, 40542980), (2, 20271490), (4, 10135745), (5, 8108596), (10, 4054298), (20, 2027149), (43, 942860), (86, 471430), (172, 235715), (215, 188572), (430, 94286), (860, 47143)]