20512556650

素因数分解:

$2^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{26119}}^1$

素因数の和:26383

約数の個数: 48

約数和(自身を含む): 38769393600

約数和(自身を除く): 18256836950

約数列:

[1, 2, 5, 10, 25, 50, 113, 139, 226, 278, 565, 695, 1130, 1390, 2825, 3475, 5650, 6950, 15707, 26119, 31414, 52238, 78535, 130595, 157070, 261190, 392675, 652975, 785350, 1305950, 2951447, 3630541, 5902894, 7261082, 14757235, 18152705, 29514470, 36305410, 73786175, 90763525, 147572350, 181527050, 410251133, 820502266, 2051255665, 4102511330, 10256278325, 20512556650]

約数ペア:

[(1, 20512556650), (2, 10256278325), (5, 4102511330), (10, 2051255665), (25, 820502266), (50, 410251133), (113, 181527050), (139, 147572350), (226, 90763525), (278, 73786175), (565, 36305410), (695, 29514470), (1130, 18152705), (1390, 14757235), (2825, 7261082), (3475, 5902894), (5650, 3630541), (6950, 2951447), (15707, 1305950), (26119, 785350), (31414, 652975), (52238, 392675), (78535, 261190), (130595, 157070)]