28039220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{547}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 64628928

約数和(自身を除く): 36589708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 233, 466, 547, 932, 1094, 1165, 2188, 2330, 2563, 2735, 4660, 5126, 5470, 6017, 10252, 10940, 12034, 12815, 24068, 25630, 30085, 51260, 60170, 120340, 127451, 254902, 509804, 637255, 1274510, 1401961, 2549020, 2803922, 5607844, 7009805, 14019610, 28039220]

約数ペア:

[(1, 28039220), (2, 14019610), (4, 7009805), (5, 5607844), (10, 2803922), (11, 2549020), (20, 1401961), (22, 1274510), (44, 637255), (55, 509804), (110, 254902), (220, 127451), (233, 120340), (466, 60170), (547, 51260), (932, 30085), (1094, 25630), (1165, 24068), (2188, 12815), (2330, 12034), (2563, 10940), (2735, 10252), (4660, 6017), (5126, 5470)]