2099120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1413

約数の個数: 40

約数和(自身を含む): 5141040

約数和(自身を除く): 3041920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1381, 1520, 2762, 5524, 6905, 11048, 13810, 22096, 26239, 27620, 52478, 55240, 104956, 110480, 131195, 209912, 262390, 419824, 524780, 1049560, 2099120]

約数ペア:

[(1, 2099120), (2, 1049560), (4, 524780), (5, 419824), (8, 262390), (10, 209912), (16, 131195), (19, 110480), (20, 104956), (38, 55240), (40, 52478), (76, 27620), (80, 26239), (95, 22096), (152, 13810), (190, 11048), (304, 6905), (380, 5524), (760, 2762), (1381, 1520)]