8139220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21419}}^1$

素因数の和:21447

約数の個数: 24

約数和(自身を含む): 17992800

約数和(自身を除く): 9853580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 21419, 42838, 85676, 107095, 214190, 406961, 428380, 813922, 1627844, 2034805, 4069610, 8139220]

約数ペア:

[(1, 8139220), (2, 4069610), (4, 2034805), (5, 1627844), (10, 813922), (19, 428380), (20, 406961), (38, 214190), (76, 107095), (95, 85676), (190, 42838), (380, 21419)]