389620816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{6619}}^1$

素因数の和:6923

約数の個数: 40

約数和(自身を含む): 815954720

約数和(自身を除く): 426333904

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 283, 566, 1132, 2264, 3679, 4528, 6619, 7358, 13238, 14716, 26476, 29432, 52952, 58864, 86047, 105904, 172094, 344188, 688376, 1376752, 1873177, 3746354, 7492708, 14985416, 24351301, 29970832, 48702602, 97405204, 194810408, 389620816]

約数ペア:

[(1, 389620816), (2, 194810408), (4, 97405204), (8, 48702602), (13, 29970832), (16, 24351301), (26, 14985416), (52, 7492708), (104, 3746354), (208, 1873177), (283, 1376752), (566, 688376), (1132, 344188), (2264, 172094), (3679, 105904), (4528, 86047), (6619, 58864), (7358, 52952), (13238, 29432), (14716, 26476)]