638407744

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{767317}}^1$

素因数の和:767342

約数の個数: 28

約数和(自身を含む): 1364291404

約数和(自身を除く): 725883660

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 767317, 1534634, 3069268, 6138536, 9975121, 12277072, 19950242, 24554144, 39900484, 49108288, 79800968, 159601936, 319203872, 638407744]

約数ペア:

[(1, 638407744), (2, 319203872), (4, 159601936), (8, 79800968), (13, 49108288), (16, 39900484), (26, 24554144), (32, 19950242), (52, 12277072), (64, 9975121), (104, 6138536), (208, 3069268), (416, 1534634), (832, 767317)]