9999375

素因数分解:

$3^1\times 5^4\times {\mathrm{5333}}^1$

素因数の和:5356

約数の個数: 20

約数和(自身を含む): 16663416

約数和(自身を除く): 6664041

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 5333, 15999, 26665, 79995, 133325, 399975, 666625, 1999875, 3333125, 9999375]

約数ペア:

[(1, 9999375), (3, 3333125), (5, 1999875), (15, 666625), (25, 399975), (75, 133325), (125, 79995), (375, 26665), (625, 15999), (1875, 5333)]