201018800

素因数分解:

$2^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2551}}^1$

素因数の和:2766

約数の個数: 60

約数和(自身を含む): 485589456

約数和(自身を除く): 284570656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 197, 200, 394, 400, 788, 985, 1576, 1970, 2551, 3152, 3940, 4925, 5102, 7880, 9850, 10204, 12755, 15760, 19700, 20408, 25510, 39400, 40816, 51020, 63775, 78800, 102040, 127550, 204080, 255100, 502547, 510200, 1005094, 1020400, 2010188, 2512735, 4020376, 5025470, 8040752, 10050940, 12563675, 20101880, 25127350, 40203760, 50254700, 100509400, 201018800]

約数ペア:

[(1, 201018800), (2, 100509400), (4, 50254700), (5, 40203760), (8, 25127350), (10, 20101880), (16, 12563675), (20, 10050940), (25, 8040752), (40, 5025470), (50, 4020376), (80, 2512735), (100, 2010188), (197, 1020400), (200, 1005094), (394, 510200), (400, 502547), (788, 255100), (985, 204080), (1576, 127550), (1970, 102040), (2551, 78800), (3152, 63775), (3940, 51020), (4925, 40816), (5102, 39400), (7880, 25510), (9850, 20408), (10204, 19700), (12755, 15760)]