20199803175

素因数分解:

$3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{645877}}^1$

素因数の和:646032

約数の個数: 36

約数和(自身を含む): 36440436760

約数和(自身を除く): 16240633585

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 139, 225, 417, 695, 1251, 2085, 3475, 6255, 10425, 31275, 645877, 1937631, 3229385, 5812893, 9688155, 16146925, 29064465, 48440775, 89776903, 145322325, 269330709, 448884515, 807992127, 1346653545, 2244422575, 4039960635, 6733267725, 20199803175]

約数ペア:

[(1, 20199803175), (3, 6733267725), (5, 4039960635), (9, 2244422575), (15, 1346653545), (25, 807992127), (45, 448884515), (75, 269330709), (139, 145322325), (225, 89776903), (417, 48440775), (695, 29064465), (1251, 16146925), (2085, 9688155), (3475, 5812893), (6255, 3229385), (10425, 1937631), (31275, 645877)]