81954320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{146347}}^1$

素因数の和:146367

約数の個数: 40

約数和(自身を含む): 217765824

約数和(自身を除く): 135811504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 146347, 292694, 585388, 731735, 1024429, 1170776, 1463470, 2048858, 2341552, 2926940, 4097716, 5122145, 5853880, 8195432, 10244290, 11707760, 16390864, 20488580, 40977160, 81954320]

約数ペア:

[(1, 81954320), (2, 40977160), (4, 20488580), (5, 16390864), (7, 11707760), (8, 10244290), (10, 8195432), (14, 5853880), (16, 5122145), (20, 4097716), (28, 2926940), (35, 2341552), (40, 2048858), (56, 1463470), (70, 1170776), (80, 1024429), (112, 731735), (140, 585388), (280, 292694), (560, 146347)]