19990125

素因数分解:

$3^3\times 5^3\times {\mathrm{5923}}^1$

素因数の和:5947

約数の個数: 32

約数和(自身を含む): 36965760

約数和(自身を除く): 16975635

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 5923, 17769, 29615, 53307, 88845, 148075, 159921, 266535, 444225, 740375, 799605, 1332675, 2221125, 3998025, 6663375, 19990125]

約数ペア:

[(1, 19990125), (3, 6663375), (5, 3998025), (9, 2221125), (15, 1332675), (25, 799605), (27, 740375), (45, 444225), (75, 266535), (125, 159921), (135, 148075), (225, 88845), (375, 53307), (675, 29615), (1125, 17769), (3375, 5923)]