257133040

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{15233}}^1$

素因数の和:15457

約数の個数: 40

約数和(自身を含む): 600707088

約数和(自身を除く): 343574048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 8440, 15233, 16880, 30466, 60932, 76165, 121864, 152330, 243728, 304660, 609320, 1218640, 3214163, 6428326, 12856652, 16070815, 25713304, 32141630, 51426608, 64283260, 128566520, 257133040]

約数ペア:

[(1, 257133040), (2, 128566520), (4, 64283260), (5, 51426608), (8, 32141630), (10, 25713304), (16, 16070815), (20, 12856652), (40, 6428326), (80, 3214163), (211, 1218640), (422, 609320), (844, 304660), (1055, 243728), (1688, 152330), (2110, 121864), (3376, 76165), (4220, 60932), (8440, 30466), (15233, 16880)]