77661340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{857}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 171243072

約数和(自身を除く): 93581732

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 394, 460, 788, 857, 985, 1714, 1970, 3428, 3940, 4285, 4531, 8570, 9062, 17140, 18124, 19711, 22655, 39422, 45310, 78844, 90620, 98555, 168829, 197110, 337658, 394220, 675316, 844145, 1688290, 3376580, 3883067, 7766134, 15532268, 19415335, 38830670, 77661340]

約数ペア:

[(1, 77661340), (2, 38830670), (4, 19415335), (5, 15532268), (10, 7766134), (20, 3883067), (23, 3376580), (46, 1688290), (92, 844145), (115, 675316), (197, 394220), (230, 337658), (394, 197110), (460, 168829), (788, 98555), (857, 90620), (985, 78844), (1714, 45310), (1970, 39422), (3428, 22655), (3940, 19711), (4285, 18124), (4531, 17140), (8570, 9062)]