203946820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18919}}^1$

素因数の和:18953

約数の個数: 72

約数和(自身を含む): 543533760

約数和(自身を除く): 339586940

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 18919, 37838, 75676, 94595, 132433, 189190, 208109, 264866, 378380, 416218, 529732, 662165, 832436, 927031, 1040545, 1324330, 1456763, 1854062, 2081090, 2648660, 2913526, 3708124, 4162180, 4635155, 5827052, 7283815, 9270310, 10197341, 14567630, 18540620, 20394682, 29135260, 40789364, 50986705, 101973410, 203946820]

約数ペア:

[(1, 203946820), (2, 101973410), (4, 50986705), (5, 40789364), (7, 29135260), (10, 20394682), (11, 18540620), (14, 14567630), (20, 10197341), (22, 9270310), (28, 7283815), (35, 5827052), (44, 4635155), (49, 4162180), (55, 3708124), (70, 2913526), (77, 2648660), (98, 2081090), (110, 1854062), (140, 1456763), (154, 1324330), (196, 1040545), (220, 927031), (245, 832436), (308, 662165), (385, 529732), (490, 416218), (539, 378380), (770, 264866), (980, 208109), (1078, 189190), (1540, 132433), (2156, 94595), (2695, 75676), (5390, 37838), (10780, 18919)]