25720740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{15877}}^1$

素因数の和:15898

約数の個数: 60

約数和(自身を含む): 80691996

約数和(自身を除く): 54971256

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, 15877, 31754, 47631, 63508, 79385, 95262, 142893, 158770, 190524, 238155, 285786, 317540, 428679, 476310, 571572, 714465, 857358, 952620, 1286037, 1428930, 1714716, 2143395, 2572074, 2857860, 4286790, 5144148, 6430185, 8573580, 12860370, 25720740]

約数ペア:

[(1, 25720740), (2, 12860370), (3, 8573580), (4, 6430185), (5, 5144148), (6, 4286790), (9, 2857860), (10, 2572074), (12, 2143395), (15, 1714716), (18, 1428930), (20, 1286037), (27, 952620), (30, 857358), (36, 714465), (45, 571572), (54, 476310), (60, 428679), (81, 317540), (90, 285786), (108, 238155), (135, 190524), (162, 158770), (180, 142893), (270, 95262), (324, 79385), (405, 63508), (540, 47631), (810, 31754), (1620, 15877)]