18793660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{137}}^1$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 41963040

約数和(自身を除く): 23169380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 361, 380, 548, 685, 722, 1370, 1444, 1805, 2603, 2740, 3610, 5206, 6859, 7220, 10412, 13015, 13718, 26030, 27436, 34295, 49457, 52060, 68590, 98914, 137180, 197828, 247285, 494570, 939683, 989140, 1879366, 3758732, 4698415, 9396830, 18793660]

約数ペア:

[(1, 18793660), (2, 9396830), (4, 4698415), (5, 3758732), (10, 1879366), (19, 989140), (20, 939683), (38, 494570), (76, 247285), (95, 197828), (137, 137180), (190, 98914), (274, 68590), (361, 52060), (380, 49457), (548, 34295), (685, 27436), (722, 26030), (1370, 13718), (1444, 13015), (1805, 10412), (2603, 7220), (2740, 6859), (3610, 5206)]