28420390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1481}}^1$

素因数の和:1608

約数の個数: 32

約数和(自身を含む): 54419040

約数和(自身を除く): 25998650

約数列:

[1, 2, 5, 10, 19, 38, 95, 101, 190, 202, 505, 1010, 1481, 1919, 2962, 3838, 7405, 9595, 14810, 19190, 28139, 56278, 140695, 149581, 281390, 299162, 747905, 1495810, 2842039, 5684078, 14210195, 28420390]

約数ペア:

[(1, 28420390), (2, 14210195), (5, 5684078), (10, 2842039), (19, 1495810), (38, 747905), (95, 299162), (101, 281390), (190, 149581), (202, 140695), (505, 56278), (1010, 28139), (1481, 19190), (1919, 14810), (2962, 9595), (3838, 7405)]