81191375

素因数分解:

$5^3\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 105019200

約数和(自身を除く): 23827825

約数列:

[1, 5, 25, 59, 101, 109, 125, 295, 505, 545, 1475, 2525, 2725, 5959, 6431, 7375, 11009, 12625, 13625, 29795, 32155, 55045, 148975, 160775, 275225, 649531, 744875, 803875, 1376125, 3247655, 16238275, 81191375]

約数ペア:

[(1, 81191375), (5, 16238275), (25, 3247655), (59, 1376125), (101, 803875), (109, 744875), (125, 649531), (295, 275225), (505, 160775), (545, 148975), (1475, 55045), (2525, 32155), (2725, 29795), (5959, 13625), (6431, 12625), (7375, 11009)]