20247783185

素因数分解:

$5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{18787}}^1$

素因数の和:18942

約数の個数: 48

約数和(自身を含む): 29146049856

約数和(自身を除く): 8898266671

約数列:

[1, 5, 7, 35, 49, 53, 83, 245, 265, 371, 415, 581, 1855, 2597, 2905, 4067, 4399, 12985, 18787, 20335, 21995, 30793, 93935, 131509, 153965, 215551, 657545, 920563, 995711, 1077755, 1559321, 4602815, 4978555, 6969977, 7796605, 10915247, 34849885, 48789839, 54576235, 76406729, 82644013, 243949195, 382033645, 413220065, 578508091, 2892540455, 4049556637, 20247783185]

約数ペア:

[(1, 20247783185), (5, 4049556637), (7, 2892540455), (35, 578508091), (49, 413220065), (53, 382033645), (83, 243949195), (245, 82644013), (265, 76406729), (371, 54576235), (415, 48789839), (581, 34849885), (1855, 10915247), (2597, 7796605), (2905, 6969977), (4067, 4978555), (4399, 4602815), (12985, 1559321), (18787, 1077755), (20335, 995711), (21995, 920563), (30793, 657545), (93935, 215551), (131509, 153965)]