78711780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{187409}}^1$

素因数の和:187428

約数の個数: 48

約数和(自身を含む): 251879040

約数和(自身を除く): 173167260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 187409, 374818, 562227, 749636, 937045, 1124454, 1311863, 1874090, 2248908, 2623726, 2811135, 3748180, 3935589, 5247452, 5622270, 6559315, 7871178, 11244540, 13118630, 15742356, 19677945, 26237260, 39355890, 78711780]

約数ペア:

[(1, 78711780), (2, 39355890), (3, 26237260), (4, 19677945), (5, 15742356), (6, 13118630), (7, 11244540), (10, 7871178), (12, 6559315), (14, 5622270), (15, 5247452), (20, 3935589), (21, 3748180), (28, 2811135), (30, 2623726), (35, 2248908), (42, 1874090), (60, 1311863), (70, 1124454), (84, 937045), (105, 749636), (140, 562227), (210, 374818), (420, 187409)]