19954920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{929}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 60264000

約数和(自身を除く): 40309080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 179, 358, 537, 716, 895, 929, 1074, 1432, 1790, 1858, 2148, 2685, 2787, 3580, 3716, 4296, 4645, 5370, 5574, 7160, 7432, 9290, 10740, 11148, 13935, 18580, 21480, 22296, 27870, 37160, 55740, 111480, 166291, 332582, 498873, 665164, 831455, 997746, 1330328, 1662910, 1995492, 2494365, 3325820, 3990984, 4988730, 6651640, 9977460, 19954920]

約数ペア:

[(1, 19954920), (2, 9977460), (3, 6651640), (4, 4988730), (5, 3990984), (6, 3325820), (8, 2494365), (10, 1995492), (12, 1662910), (15, 1330328), (20, 997746), (24, 831455), (30, 665164), (40, 498873), (60, 332582), (120, 166291), (179, 111480), (358, 55740), (537, 37160), (716, 27870), (895, 22296), (929, 21480), (1074, 18580), (1432, 13935), (1790, 11148), (1858, 10740), (2148, 9290), (2685, 7432), (2787, 7160), (3580, 5574), (3716, 5370), (4296, 4645)]