990392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 2041200

約数和(自身を除く): 1050808

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 107, 178, 214, 356, 428, 712, 856, 1157, 1391, 2314, 2782, 4628, 5564, 9256, 9523, 11128, 19046, 38092, 76184, 123799, 247598, 495196, 990392]

約数ペア:

[(1, 990392), (2, 495196), (4, 247598), (8, 123799), (13, 76184), (26, 38092), (52, 19046), (89, 11128), (104, 9523), (107, 9256), (178, 5564), (214, 4628), (356, 2782), (428, 2314), (712, 1391), (856, 1157)]