131468440

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{12497}}^1$

素因数の和:12771

約数の個数: 32

約数和(自身を含む): 296952480

約数和(自身を除く): 165484040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 12497, 24994, 49988, 62485, 99976, 124970, 249940, 499880, 3286711, 6573422, 13146844, 16433555, 26293688, 32867110, 65734220, 131468440]

約数ペア:

[(1, 131468440), (2, 65734220), (4, 32867110), (5, 26293688), (8, 16433555), (10, 13146844), (20, 6573422), (40, 3286711), (263, 499880), (526, 249940), (1052, 124970), (1315, 99976), (2104, 62485), (2630, 49988), (5260, 24994), (10520, 12497)]