13132640

素因数分解:

$2^5\times 5^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:615

約数の個数: 48

約数和(自身を含む): 31253040

約数和(自身を除く): 18120400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 211, 389, 422, 778, 844, 1055, 1556, 1688, 1945, 2110, 3112, 3376, 3890, 4220, 6224, 6752, 7780, 8440, 12448, 15560, 16880, 31120, 33760, 62240, 82079, 164158, 328316, 410395, 656632, 820790, 1313264, 1641580, 2626528, 3283160, 6566320, 13132640]

約数ペア:

[(1, 13132640), (2, 6566320), (4, 3283160), (5, 2626528), (8, 1641580), (10, 1313264), (16, 820790), (20, 656632), (32, 410395), (40, 328316), (80, 164158), (160, 82079), (211, 62240), (389, 33760), (422, 31120), (778, 16880), (844, 15560), (1055, 12448), (1556, 8440), (1688, 7780), (1945, 6752), (2110, 6224), (3112, 4220), (3376, 3890)]