40021885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 53280000

約数和(自身を除く): 13258115

約数列:

[1, 5, 19, 29, 73, 95, 145, 199, 365, 551, 995, 1387, 2117, 2755, 3781, 5771, 6935, 10585, 14527, 18905, 28855, 40223, 72635, 109649, 201115, 276013, 421283, 548245, 1380065, 2106415, 8004377, 40021885]

約数ペア:

[(1, 40021885), (5, 8004377), (19, 2106415), (29, 1380065), (73, 548245), (95, 421283), (145, 276013), (199, 201115), (365, 109649), (551, 72635), (995, 40223), (1387, 28855), (2117, 18905), (2755, 14527), (3781, 10585), (5771, 6935)]