19712144

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 39580800

約数和(自身を除く): 19868656

約数列:

[1, 2, 4, 8, 16, 41, 82, 151, 164, 199, 302, 328, 398, 604, 656, 796, 1208, 1592, 2416, 3184, 6191, 8159, 12382, 16318, 24764, 30049, 32636, 49528, 60098, 65272, 99056, 120196, 130544, 240392, 480784, 1232009, 2464018, 4928036, 9856072, 19712144]

約数ペア:

[(1, 19712144), (2, 9856072), (4, 4928036), (8, 2464018), (16, 1232009), (41, 480784), (82, 240392), (151, 130544), (164, 120196), (199, 99056), (302, 65272), (328, 60098), (398, 49528), (604, 32636), (656, 30049), (796, 24764), (1208, 16318), (1592, 12382), (2416, 8159), (3184, 6191)]