40216905

素因数分解:

$3^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 72600000

約数和(自身を除く): 32383095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 199, 405, 499, 597, 995, 1497, 1791, 2495, 2985, 4491, 5373, 7485, 8955, 13473, 16119, 22455, 26865, 40419, 67365, 80595, 99301, 202095, 297903, 496505, 893709, 1489515, 2681127, 4468545, 8043381, 13405635, 40216905]

約数ペア:

[(1, 40216905), (3, 13405635), (5, 8043381), (9, 4468545), (15, 2681127), (27, 1489515), (45, 893709), (81, 496505), (135, 297903), (199, 202095), (405, 99301), (499, 80595), (597, 67365), (995, 40419), (1497, 26865), (1791, 22455), (2495, 16119), (2985, 13473), (4491, 8955), (5373, 7485)]