40518620

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7883}}^1$

素因数の和:8149

約数の個数: 24

約数和(自身を含む): 85431024

約数和(自身を除く): 44912404

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 7883, 15766, 31532, 39415, 78830, 157660, 2025931, 4051862, 8103724, 10129655, 20259310, 40518620]

約数ペア:

[(1, 40518620), (2, 20259310), (4, 10129655), (5, 8103724), (10, 4051862), (20, 2025931), (257, 157660), (514, 78830), (1028, 39415), (1285, 31532), (2570, 15766), (5140, 7883)]