81143125

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1$

素因数の和:1135

約数の個数: 40

約数和(自身を含む): 122810688

約数和(自身を除く): 41667563

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 425, 595, 625, 875, 1091, 2125, 2975, 4375, 5455, 7637, 10625, 14875, 18547, 27275, 38185, 74375, 92735, 129829, 136375, 190925, 463675, 649145, 681875, 954625, 2318375, 3245725, 4773125, 11591875, 16228625, 81143125]

約数ペア:

[(1, 81143125), (5, 16228625), (7, 11591875), (17, 4773125), (25, 3245725), (35, 2318375), (85, 954625), (119, 681875), (125, 649145), (175, 463675), (425, 190925), (595, 136375), (625, 129829), (875, 92735), (1091, 74375), (2125, 38185), (2975, 27275), (4375, 18547), (5455, 14875), (7637, 10625)]