18840540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3109}}^1$

素因数の和:3222

約数の個数: 48

約数和(自身を含む): 53292960

約数和(自身を除く): 34452420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3109, 6060, 6218, 9327, 12436, 15545, 18654, 31090, 37308, 46635, 62180, 93270, 186540, 314009, 628018, 942027, 1256036, 1570045, 1884054, 3140090, 3768108, 4710135, 6280180, 9420270, 18840540]

約数ペア:

[(1, 18840540), (2, 9420270), (3, 6280180), (4, 4710135), (5, 3768108), (6, 3140090), (10, 1884054), (12, 1570045), (15, 1256036), (20, 942027), (30, 628018), (60, 314009), (101, 186540), (202, 93270), (303, 62180), (404, 46635), (505, 37308), (606, 31090), (1010, 18654), (1212, 15545), (1515, 12436), (2020, 9327), (3030, 6218), (3109, 6060)]