123359720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2017}}^1$

素因数の和:2178

約数の個数: 64

約数和(自身を含む): 305121600

約数和(自身を除く): 181761880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 440, 556, 695, 1112, 1390, 1529, 2017, 2780, 3058, 4034, 5560, 6116, 7645, 8068, 10085, 12232, 15290, 16136, 20170, 22187, 30580, 40340, 44374, 61160, 80680, 88748, 110935, 177496, 221870, 280363, 443740, 560726, 887480, 1121452, 1401815, 2242904, 2803630, 3083993, 5607260, 6167986, 11214520, 12335972, 15419965, 24671944, 30839930, 61679860, 123359720]

約数ペア:

[(1, 123359720), (2, 61679860), (4, 30839930), (5, 24671944), (8, 15419965), (10, 12335972), (11, 11214520), (20, 6167986), (22, 5607260), (40, 3083993), (44, 2803630), (55, 2242904), (88, 1401815), (110, 1121452), (139, 887480), (220, 560726), (278, 443740), (440, 280363), (556, 221870), (695, 177496), (1112, 110935), (1390, 88748), (1529, 80680), (2017, 61160), (2780, 44374), (3058, 40340), (4034, 30580), (5560, 22187), (6116, 20170), (7645, 16136), (8068, 15290), (10085, 12232)]