28164375

素因数分解:

$3^3\times 5^4\times {\mathrm{1669}}^1$

素因数の和:1698

約数の個数: 40

約数和(自身を含む): 52170800

約数和(自身を除く): 24006425

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1669, 1875, 3375, 5007, 5625, 8345, 15021, 16875, 25035, 41725, 45063, 75105, 125175, 208625, 225315, 375525, 625875, 1043125, 1126575, 1877625, 3129375, 5632875, 9388125, 28164375]

約数ペア:

[(1, 28164375), (3, 9388125), (5, 5632875), (9, 3129375), (15, 1877625), (25, 1126575), (27, 1043125), (45, 625875), (75, 375525), (125, 225315), (135, 208625), (225, 125175), (375, 75105), (625, 45063), (675, 41725), (1125, 25035), (1669, 16875), (1875, 15021), (3375, 8345), (5007, 5625)]