128140020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{711889}}^1$

素因数の和:711904

約数の個数: 36

約数和(自身を含む): 388691940

約数和(自身を除く): 260551920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 711889, 1423778, 2135667, 2847556, 3559445, 4271334, 6407001, 7118890, 8542668, 10678335, 12814002, 14237780, 21356670, 25628004, 32035005, 42713340, 64070010, 128140020]

約数ペア:

[(1, 128140020), (2, 64070010), (3, 42713340), (4, 32035005), (5, 25628004), (6, 21356670), (9, 14237780), (10, 12814002), (12, 10678335), (15, 8542668), (18, 7118890), (20, 6407001), (30, 4271334), (36, 3559445), (45, 2847556), (60, 2135667), (90, 1423778), (180, 711889)]