391405976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1931}}^1\times {\mathrm{1949}}^1$

素因数の和:3899

約数の個数: 32

約数和(自身を含む): 791154000

約数和(自身を除く): 399748024

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1931, 1949, 3862, 3898, 7724, 7796, 15448, 15592, 25103, 25337, 50206, 50674, 100412, 101348, 200824, 202696, 3763519, 7527038, 15054076, 30108152, 48925747, 97851494, 195702988, 391405976]

約数ペア:

[(1, 391405976), (2, 195702988), (4, 97851494), (8, 48925747), (13, 30108152), (26, 15054076), (52, 7527038), (104, 3763519), (1931, 202696), (1949, 200824), (3862, 101348), (3898, 100412), (7724, 50674), (7796, 50206), (15448, 25337), (15592, 25103)]