20952780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2549}}^1$

素因数の和:2698

約数の個数: 48

約数和(自身を含む): 59119200

約数和(自身を除く): 38166420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2549, 2740, 4110, 5098, 7647, 8220, 10196, 12745, 15294, 25490, 30588, 38235, 50980, 76470, 152940, 349213, 698426, 1047639, 1396852, 1746065, 2095278, 3492130, 4190556, 5238195, 6984260, 10476390, 20952780]

約数ペア:

[(1, 20952780), (2, 10476390), (3, 6984260), (4, 5238195), (5, 4190556), (6, 3492130), (10, 2095278), (12, 1746065), (15, 1396852), (20, 1047639), (30, 698426), (60, 349213), (137, 152940), (274, 76470), (411, 50980), (548, 38235), (685, 30588), (822, 25490), (1370, 15294), (1644, 12745), (2055, 10196), (2549, 8220), (2740, 7647), (4110, 5098)]