220819720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{501863}}^1$

素因数の和:501885

約数の個数: 32

約数和(自身を含む): 542013120

約数和(自身を除く): 321193400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 501863, 1003726, 2007452, 2509315, 4014904, 5018630, 5520493, 10037260, 11040986, 20074520, 22081972, 27602465, 44163944, 55204930, 110409860, 220819720]

約数ペア:

[(1, 220819720), (2, 110409860), (4, 55204930), (5, 44163944), (8, 27602465), (10, 22081972), (11, 20074520), (20, 11040986), (22, 10037260), (40, 5520493), (44, 5018630), (55, 4014904), (88, 2509315), (110, 2007452), (220, 1003726), (440, 501863)]