215676540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{399401}}^1$

素因数の和:399419

約数の個数: 48

約数和(自身を含む): 670995360

約数和(自身を除く): 455318820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 399401, 798802, 1198203, 1597604, 1997005, 2396406, 3594609, 3994010, 4792812, 5991015, 7189218, 7988020, 10783827, 11982030, 14378436, 17973045, 21567654, 23964060, 35946090, 43135308, 53919135, 71892180, 107838270, 215676540]

約数ペア:

[(1, 215676540), (2, 107838270), (3, 71892180), (4, 53919135), (5, 43135308), (6, 35946090), (9, 23964060), (10, 21567654), (12, 17973045), (15, 14378436), (18, 11982030), (20, 10783827), (27, 7988020), (30, 7189218), (36, 5991015), (45, 4792812), (54, 3994010), (60, 3594609), (90, 2396406), (108, 1997005), (135, 1597604), (180, 1198203), (270, 798802), (540, 399401)]