4047975

素因数分解:

$3^4\times 5^2\times {\mathrm{1999}}^1$

素因数の和:2021

約数の個数: 30

約数和(自身を含む): 7502000

約数和(自身を除く): 3454025

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 1999, 2025, 5997, 9995, 17991, 29985, 49975, 53973, 89955, 149925, 161919, 269865, 449775, 809595, 1349325, 4047975]

約数ペア:

[(1, 4047975), (3, 1349325), (5, 809595), (9, 449775), (15, 269865), (25, 161919), (27, 149925), (45, 89955), (75, 53973), (81, 49975), (135, 29985), (225, 17991), (405, 9995), (675, 5997), (1999, 2025)]