19720779610

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{8093}}^1\times {\mathrm{4973}}^1$

素因数の和:13087

約数の個数: 48

約数和(自身を含む): 41306304456

約数和(自身を除く): 21585524846

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 4973, 8093, 9946, 16186, 24865, 34811, 40465, 49730, 56651, 69622, 80930, 113302, 174055, 243677, 283255, 348110, 396557, 487354, 566510, 793114, 1218385, 1982785, 2436770, 3965570, 40246489, 80492978, 201232445, 281725423, 402464890, 563450846, 1408627115, 1972077961, 2817254230, 3944155922, 9860389805, 19720779610]

約数ペア:

[(1, 19720779610), (2, 9860389805), (5, 3944155922), (7, 2817254230), (10, 1972077961), (14, 1408627115), (35, 563450846), (49, 402464890), (70, 281725423), (98, 201232445), (245, 80492978), (490, 40246489), (4973, 3965570), (8093, 2436770), (9946, 1982785), (16186, 1218385), (24865, 793114), (34811, 566510), (40465, 487354), (49730, 396557), (56651, 348110), (69622, 283255), (80930, 243677), (113302, 174055)]