8268440

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{491}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 18686160

約数和(自身を除く): 10417720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 491, 842, 982, 1684, 1964, 2105, 2455, 3368, 3928, 4210, 4910, 8420, 9820, 16840, 19640, 206711, 413422, 826844, 1033555, 1653688, 2067110, 4134220, 8268440]

約数ペア:

[(1, 8268440), (2, 4134220), (4, 2067110), (5, 1653688), (8, 1033555), (10, 826844), (20, 413422), (40, 206711), (421, 19640), (491, 16840), (842, 9820), (982, 8420), (1684, 4910), (1964, 4210), (2105, 3928), (2455, 3368)]