81278565

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{373}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 132844800

約数和(自身を除く): 51566235

約数列:

[1, 3, 5, 15, 73, 199, 219, 365, 373, 597, 995, 1095, 1119, 1865, 2985, 5595, 14527, 27229, 43581, 72635, 74227, 81687, 136145, 217905, 222681, 371135, 408435, 1113405, 5418571, 16255713, 27092855, 81278565]

約数ペア:

[(1, 81278565), (3, 27092855), (5, 16255713), (15, 5418571), (73, 1113405), (199, 408435), (219, 371135), (365, 222681), (373, 217905), (597, 136145), (995, 81687), (1095, 74227), (1119, 72635), (1865, 43581), (2985, 27229), (5595, 14527)]