39928868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 83241984

約数和(自身を除く): 43313116

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 157, 217, 293, 314, 434, 586, 628, 868, 1099, 1172, 2051, 2198, 4102, 4396, 4867, 8204, 9083, 9734, 18166, 19468, 34069, 36332, 46001, 63581, 68138, 92002, 127162, 136276, 184004, 254324, 322007, 644014, 1288028, 1426031, 2852062, 5704124, 9982217, 19964434, 39928868]

約数ペア:

[(1, 39928868), (2, 19964434), (4, 9982217), (7, 5704124), (14, 2852062), (28, 1426031), (31, 1288028), (62, 644014), (124, 322007), (157, 254324), (217, 184004), (293, 136276), (314, 127162), (434, 92002), (586, 68138), (628, 63581), (868, 46001), (1099, 36332), (1172, 34069), (2051, 19468), (2198, 18166), (4102, 9734), (4396, 9083), (4867, 8204)]