200121520

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{19697}}^1$

素因数の和:19837

約数の個数: 40

約数和(自身を含む): 468969984

約数和(自身を除く): 268848464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 19697, 39394, 78788, 98485, 157576, 196970, 315152, 393940, 787880, 1575760, 2501519, 5003038, 10006076, 12507595, 20012152, 25015190, 40024304, 50030380, 100060760, 200121520]

約数ペア:

[(1, 200121520), (2, 100060760), (4, 50030380), (5, 40024304), (8, 25015190), (10, 20012152), (16, 12507595), (20, 10006076), (40, 5003038), (80, 2501519), (127, 1575760), (254, 787880), (508, 393940), (635, 315152), (1016, 196970), (1270, 157576), (2032, 98485), (2540, 78788), (5080, 39394), (10160, 19697)]