15991400

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 38202540

約数和(自身を除く): 22211140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2161, 3700, 4322, 7400, 8644, 10805, 17288, 21610, 43220, 54025, 79957, 86440, 108050, 159914, 216100, 319828, 399785, 432200, 639656, 799570, 1599140, 1998925, 3198280, 3997850, 7995700, 15991400]

約数ペア:

[(1, 15991400), (2, 7995700), (4, 3997850), (5, 3198280), (8, 1998925), (10, 1599140), (20, 799570), (25, 639656), (37, 432200), (40, 399785), (50, 319828), (74, 216100), (100, 159914), (148, 108050), (185, 86440), (200, 79957), (296, 54025), (370, 43220), (740, 21610), (925, 17288), (1480, 10805), (1850, 8644), (2161, 7400), (3700, 4322)]