78822500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:834

約数の個数: 60

約数和(自身を含む): 176802780

約数和(自身を除く): 97980280

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 625, 769, 820, 1025, 1250, 1538, 2050, 2500, 3076, 3845, 4100, 5125, 7690, 10250, 15380, 19225, 20500, 25625, 31529, 38450, 51250, 63058, 76900, 96125, 102500, 126116, 157645, 192250, 315290, 384500, 480625, 630580, 788225, 961250, 1576450, 1922500, 3152900, 3941125, 7882250, 15764500, 19705625, 39411250, 78822500]

約数ペア:

[(1, 78822500), (2, 39411250), (4, 19705625), (5, 15764500), (10, 7882250), (20, 3941125), (25, 3152900), (41, 1922500), (50, 1576450), (82, 961250), (100, 788225), (125, 630580), (164, 480625), (205, 384500), (250, 315290), (410, 192250), (500, 157645), (625, 126116), (769, 102500), (820, 96125), (1025, 76900), (1250, 63058), (1538, 51250), (2050, 38450), (2500, 31529), (3076, 25625), (3845, 20500), (4100, 19225), (5125, 15380), (7690, 10250)]