7639960

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 17269200

約数和(自身を除く): 9629240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 491, 778, 982, 1556, 1945, 1964, 2455, 3112, 3890, 3928, 4910, 7780, 9820, 15560, 19640, 190999, 381998, 763996, 954995, 1527992, 1909990, 3819980, 7639960]

約数ペア:

[(1, 7639960), (2, 3819980), (4, 1909990), (5, 1527992), (8, 954995), (10, 763996), (20, 381998), (40, 190999), (389, 19640), (491, 15560), (778, 9820), (982, 7780), (1556, 4910), (1945, 3928), (1964, 3890), (2455, 3112)]