40518320

素因数分解:

$2^4\times 5^1\times {\mathrm{506479}}^1$

素因数の和:506492

約数の個数: 20

約数和(自身を含む): 94205280

約数和(自身を除く): 53686960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 506479, 1012958, 2025916, 2532395, 4051832, 5064790, 8103664, 10129580, 20259160, 40518320]

約数ペア:

[(1, 40518320), (2, 20259160), (4, 10129580), (5, 8103664), (8, 5064790), (10, 4051832), (16, 2532395), (20, 2025916), (40, 1012958), (80, 506479)]