15421180

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1789}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 32477760

約数和(自身を除く): 17056580

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 1789, 2155, 3578, 4310, 7156, 8620, 8945, 17890, 35780, 771059, 1542118, 3084236, 3855295, 7710590, 15421180]

約数ペア:

[(1, 15421180), (2, 7710590), (4, 3855295), (5, 3084236), (10, 1542118), (20, 771059), (431, 35780), (862, 17890), (1724, 8945), (1789, 8620), (2155, 7156), (3578, 4310)]