8127880

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{641}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 18374040

約数和(自身を除く): 10246160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 641, 1268, 1282, 1585, 2536, 2564, 3170, 3205, 5128, 6340, 6410, 12680, 12820, 25640, 203197, 406394, 812788, 1015985, 1625576, 2031970, 4063940, 8127880]

約数ペア:

[(1, 8127880), (2, 4063940), (4, 2031970), (5, 1625576), (8, 1015985), (10, 812788), (20, 406394), (40, 203197), (317, 25640), (634, 12820), (641, 12680), (1268, 6410), (1282, 6340), (1585, 5128), (2536, 3205), (2564, 3170)]