15764919980

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1605389}}^1$

素因数の和:1605889

約数の個数: 24

約数和(自身を含む): 33173778960

約数和(自身を除く): 17408858980

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 1605389, 3210778, 6421556, 8026945, 16053890, 32107780, 788245999, 1576491998, 3152983996, 3941229995, 7882459990, 15764919980]

約数ペア:

[(1, 15764919980), (2, 7882459990), (4, 3941229995), (5, 3152983996), (10, 1576491998), (20, 788245999), (491, 32107780), (982, 16053890), (1964, 8026945), (2455, 6421556), (4910, 3210778), (9820, 1605389)]