11281985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 16450560

約数和(自身を除く): 5168575

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 509, 715, 1705, 2015, 2545, 4433, 5599, 6617, 15779, 22165, 27995, 33085, 72787, 78895, 173569, 205127, 363935, 867845, 1025635, 2256397, 11281985]

約数ペア:

[(1, 11281985), (5, 2256397), (11, 1025635), (13, 867845), (31, 363935), (55, 205127), (65, 173569), (143, 78895), (155, 72787), (341, 33085), (403, 27995), (509, 22165), (715, 15779), (1705, 6617), (2015, 5599), (2545, 4433)]