1339120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:913

約数の個数: 40

約数和(自身を含む): 3281040

約数和(自身を除く): 1941920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 881, 1520, 1762, 3524, 4405, 7048, 8810, 14096, 16739, 17620, 33478, 35240, 66956, 70480, 83695, 133912, 167390, 267824, 334780, 669560, 1339120]

約数ペア:

[(1, 1339120), (2, 669560), (4, 334780), (5, 267824), (8, 167390), (10, 133912), (16, 83695), (19, 70480), (20, 66956), (38, 35240), (40, 33478), (76, 17620), (80, 16739), (95, 14096), (152, 8810), (190, 7048), (304, 4405), (380, 3524), (760, 1762), (881, 1520)]