19570160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5689}}^1$

素因数の和:5745

約数の個数: 40

約数和(自身を含む): 46566960

約数和(自身を除く): 26996800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5689, 11378, 22756, 28445, 45512, 56890, 91024, 113780, 227560, 244627, 455120, 489254, 978508, 1223135, 1957016, 2446270, 3914032, 4892540, 9785080, 19570160]

約数ペア:

[(1, 19570160), (2, 9785080), (4, 4892540), (5, 3914032), (8, 2446270), (10, 1957016), (16, 1223135), (20, 978508), (40, 489254), (43, 455120), (80, 244627), (86, 227560), (172, 113780), (215, 91024), (344, 56890), (430, 45512), (688, 28445), (860, 22756), (1720, 11378), (3440, 5689)]