15894540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 48550320

約数和(自身を除く): 32655780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 227, 389, 454, 681, 778, 908, 1135, 1167, 1362, 1556, 1945, 2043, 2270, 2334, 2724, 3405, 3501, 3890, 4086, 4540, 4668, 5835, 6810, 7002, 7780, 8172, 10215, 11670, 13620, 14004, 17505, 20430, 23340, 35010, 40860, 70020, 88303, 176606, 264909, 353212, 441515, 529818, 794727, 883030, 1059636, 1324545, 1589454, 1766060, 2649090, 3178908, 3973635, 5298180, 7947270, 15894540]

約数ペア:

[(1, 15894540), (2, 7947270), (3, 5298180), (4, 3973635), (5, 3178908), (6, 2649090), (9, 1766060), (10, 1589454), (12, 1324545), (15, 1059636), (18, 883030), (20, 794727), (30, 529818), (36, 441515), (45, 353212), (60, 264909), (90, 176606), (180, 88303), (227, 70020), (389, 40860), (454, 35010), (681, 23340), (778, 20430), (908, 17505), (1135, 14004), (1167, 13620), (1362, 11670), (1556, 10215), (1945, 8172), (2043, 7780), (2270, 7002), (2334, 6810), (2724, 5835), (3405, 4668), (3501, 4540), (3890, 4086)]