20448208

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 43497216

約数和(自身を除く): 23049008

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 223, 446, 521, 892, 1042, 1784, 2084, 2453, 3568, 4168, 4906, 5731, 8336, 9812, 11462, 19624, 22924, 39248, 45848, 91696, 116183, 232366, 464732, 929464, 1278013, 1858928, 2556026, 5112052, 10224104, 20448208]

約数ペア:

[(1, 20448208), (2, 10224104), (4, 5112052), (8, 2556026), (11, 1858928), (16, 1278013), (22, 929464), (44, 464732), (88, 232366), (176, 116183), (223, 91696), (446, 45848), (521, 39248), (892, 22924), (1042, 19624), (1784, 11462), (2084, 9812), (2453, 8336), (3568, 5731), (4168, 4906)]