20751290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12889}}^1$

素因数の和:12926

約数の個数: 32

約数和(自身を含む): 44547840

約数和(自身を除く): 23796550

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 12889, 25778, 64445, 90223, 128890, 180446, 296447, 451115, 592894, 902230, 1482235, 2075129, 2964470, 4150258, 10375645, 20751290]

約数ペア:

[(1, 20751290), (2, 10375645), (5, 4150258), (7, 2964470), (10, 2075129), (14, 1482235), (23, 902230), (35, 592894), (46, 451115), (70, 296447), (115, 180446), (161, 128890), (230, 90223), (322, 64445), (805, 25778), (1610, 12889)]