30787220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81019}}^1$

素因数の和:81047

約数の個数: 24

約数和(自身を含む): 68056800

約数和(自身を除く): 37269580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 81019, 162038, 324076, 405095, 810190, 1539361, 1620380, 3078722, 6157444, 7696805, 15393610, 30787220]

約数ペア:

[(1, 30787220), (2, 15393610), (4, 7696805), (5, 6157444), (10, 3078722), (19, 1620380), (20, 1539361), (38, 810190), (76, 405095), (95, 324076), (190, 162038), (380, 81019)]