128715610

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1999}}^1$

素因数の和:2190

約数の個数: 32

約数和(自身を含む): 238464000

約数和(自身を除く): 109748390

約数列:

[1, 2, 5, 10, 47, 94, 137, 235, 274, 470, 685, 1370, 1999, 3998, 6439, 9995, 12878, 19990, 32195, 64390, 93953, 187906, 273863, 469765, 547726, 939530, 1369315, 2738630, 12871561, 25743122, 64357805, 128715610]

約数ペア:

[(1, 128715610), (2, 64357805), (5, 25743122), (10, 12871561), (47, 2738630), (94, 1369315), (137, 939530), (235, 547726), (274, 469765), (470, 273863), (685, 187906), (1370, 93953), (1999, 64390), (3998, 32195), (6439, 19990), (9995, 12878)]