81503820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50311}}^1$

素因数の和:50332

約数の個数: 60

約数和(自身を含む): 255685584

約数和(自身を除く): 174181764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50311, 100622, 150933, 201244, 251555, 301866, 452799, 503110, 603732, 754665, 905598, 1006220, 1358397, 1509330, 1811196, 2263995, 2716794, 3018660, 4075191, 4527990, 5433588, 6791985, 8150382, 9055980, 13583970, 16300764, 20375955, 27167940, 40751910, 81503820]

約数ペア:

[(1, 81503820), (2, 40751910), (3, 27167940), (4, 20375955), (5, 16300764), (6, 13583970), (9, 9055980), (10, 8150382), (12, 6791985), (15, 5433588), (18, 4527990), (20, 4075191), (27, 3018660), (30, 2716794), (36, 2263995), (45, 1811196), (54, 1509330), (60, 1358397), (81, 1006220), (90, 905598), (108, 754665), (135, 603732), (162, 503110), (180, 452799), (270, 301866), (324, 251555), (405, 201244), (540, 150933), (810, 100622), (1620, 50311)]