15138820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{39839}}^1$

素因数の和:39867

約数の個数: 24

約数和(自身を含む): 33465600

約数和(自身を除く): 18326780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 39839, 79678, 159356, 199195, 398390, 756941, 796780, 1513882, 3027764, 3784705, 7569410, 15138820]

約数ペア:

[(1, 15138820), (2, 7569410), (4, 3784705), (5, 3027764), (10, 1513882), (19, 796780), (20, 756941), (38, 398390), (76, 199195), (95, 159356), (190, 79678), (380, 39839)]