39871815

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 65235456

約数和(自身を除く): 25363641

約数列:

[1, 3, 5, 15, 103, 131, 197, 309, 393, 515, 591, 655, 985, 1545, 1965, 2955, 13493, 20291, 25807, 40479, 60873, 67465, 77421, 101455, 129035, 202395, 304365, 387105, 2658121, 7974363, 13290605, 39871815]

約数ペア:

[(1, 39871815), (3, 13290605), (5, 7974363), (15, 2658121), (103, 387105), (131, 304365), (197, 202395), (309, 129035), (393, 101455), (515, 77421), (591, 67465), (655, 60873), (985, 40479), (1545, 25807), (1965, 20291), (2955, 13493)]