1390815

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 2491008

約数和(自身を除く): 1100193

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 997, 1395, 2991, 4985, 8973, 14955, 30907, 44865, 92721, 154535, 278163, 463605, 1390815]

約数ペア:

[(1, 1390815), (3, 463605), (5, 278163), (9, 154535), (15, 92721), (31, 44865), (45, 30907), (93, 14955), (155, 8973), (279, 4985), (465, 2991), (997, 1395)]