663940016

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{317}}^1\times {\mathrm{1657}}^1$

素因数の和:2061

約数の個数: 40

約数和(自身を含む): 1307565120

約数和(自身を除く): 643625104

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 317, 632, 634, 1264, 1268, 1657, 2536, 3314, 5072, 6628, 13256, 25043, 26512, 50086, 100172, 130903, 200344, 261806, 400688, 523612, 525269, 1047224, 1050538, 2094448, 2101076, 4202152, 8404304, 41496251, 82992502, 165985004, 331970008, 663940016]

約数ペア:

[(1, 663940016), (2, 331970008), (4, 165985004), (8, 82992502), (16, 41496251), (79, 8404304), (158, 4202152), (316, 2101076), (317, 2094448), (632, 1050538), (634, 1047224), (1264, 525269), (1268, 523612), (1657, 400688), (2536, 261806), (3314, 200344), (5072, 130903), (6628, 100172), (13256, 50086), (25043, 26512)]