18080955

素因数分解:

$3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1999}}^1$

素因数の和:2080

約数の個数: 32

約数和(自身を含む): 32640000

約数和(自身を除く): 14559045

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 135, 201, 335, 603, 1005, 1809, 1999, 3015, 5997, 9045, 9995, 17991, 29985, 53973, 89955, 133933, 269865, 401799, 669665, 1205397, 2008995, 3616191, 6026985, 18080955]

約数ペア:

[(1, 18080955), (3, 6026985), (5, 3616191), (9, 2008995), (15, 1205397), (27, 669665), (45, 401799), (67, 269865), (135, 133933), (201, 89955), (335, 53973), (603, 29985), (1005, 17991), (1809, 9995), (1999, 9045), (3015, 5997)]