25188820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 55293840

約数和(自身を除く): 30105020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 274, 290, 317, 548, 580, 634, 685, 1268, 1370, 1585, 2740, 3170, 3973, 6340, 7946, 9193, 15892, 18386, 19865, 36772, 39730, 43429, 45965, 79460, 86858, 91930, 173716, 183860, 217145, 434290, 868580, 1259441, 2518882, 5037764, 6297205, 12594410, 25188820]

約数ペア:

[(1, 25188820), (2, 12594410), (4, 6297205), (5, 5037764), (10, 2518882), (20, 1259441), (29, 868580), (58, 434290), (116, 217145), (137, 183860), (145, 173716), (274, 91930), (290, 86858), (317, 79460), (548, 45965), (580, 43429), (634, 39730), (685, 36772), (1268, 19865), (1370, 18386), (1585, 15892), (2740, 9193), (3170, 7946), (3973, 6340)]