78947120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140977}}^1$

素因数の和:140997

約数の個数: 40

約数和(自身を含む): 209775264

約数和(自身を除く): 130828144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140977, 281954, 563908, 704885, 986839, 1127816, 1409770, 1973678, 2255632, 2819540, 3947356, 4934195, 5639080, 7894712, 9868390, 11278160, 15789424, 19736780, 39473560, 78947120]

約数ペア:

[(1, 78947120), (2, 39473560), (4, 19736780), (5, 15789424), (7, 11278160), (8, 9868390), (10, 7894712), (14, 5639080), (16, 4934195), (20, 3947356), (28, 2819540), (35, 2255632), (40, 1973678), (56, 1409770), (70, 1127816), (80, 986839), (112, 704885), (140, 563908), (280, 281954), (560, 140977)]