80730440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41189}}^1$

素因数の和:41214

約数の個数: 48

約数和(自身を含む): 211304700

約数和(自身を除く): 130574260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41189, 82378, 164756, 205945, 288323, 329512, 411890, 576646, 823780, 1153292, 1441615, 1647560, 2018261, 2306584, 2883230, 4036522, 5766460, 8073044, 10091305, 11532920, 16146088, 20182610, 40365220, 80730440]

約数ペア:

[(1, 80730440), (2, 40365220), (4, 20182610), (5, 16146088), (7, 11532920), (8, 10091305), (10, 8073044), (14, 5766460), (20, 4036522), (28, 2883230), (35, 2306584), (40, 2018261), (49, 1647560), (56, 1441615), (70, 1153292), (98, 823780), (140, 576646), (196, 411890), (245, 329512), (280, 288323), (392, 205945), (490, 164756), (980, 82378), (1960, 41189)]