20914520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47533}}^1$

素因数の和:47555

約数の個数: 32

約数和(自身を含む): 51336720

約数和(自身を除く): 30422200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47533, 95066, 190132, 237665, 380264, 475330, 522863, 950660, 1045726, 1901320, 2091452, 2614315, 4182904, 5228630, 10457260, 20914520]

約数ペア:

[(1, 20914520), (2, 10457260), (4, 5228630), (5, 4182904), (8, 2614315), (10, 2091452), (11, 1901320), (20, 1045726), (22, 950660), (40, 522863), (44, 475330), (55, 380264), (88, 237665), (110, 190132), (220, 95066), (440, 47533)]