83505140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1091}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 181621440

約数和(自身を除く): 98116300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 1091, 1780, 2182, 3827, 4364, 5455, 7654, 10910, 15308, 19135, 21820, 38270, 46913, 76540, 93826, 97099, 187652, 194198, 234565, 388396, 469130, 485495, 938260, 970990, 1941980, 4175257, 8350514, 16701028, 20876285, 41752570, 83505140]

約数ペア:

[(1, 83505140), (2, 41752570), (4, 20876285), (5, 16701028), (10, 8350514), (20, 4175257), (43, 1941980), (86, 970990), (89, 938260), (172, 485495), (178, 469130), (215, 388396), (356, 234565), (430, 194198), (445, 187652), (860, 97099), (890, 93826), (1091, 76540), (1780, 46913), (2182, 38270), (3827, 21820), (4364, 19135), (5455, 15308), (7654, 10910)]