129239320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{461569}}^1$

素因数の和:461587

約数の個数: 32

約数和(自身を含む): 332330400

約数和(自身を除く): 203091080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 461569, 923138, 1846276, 2307845, 3230983, 3692552, 4615690, 6461966, 9231380, 12923932, 16154915, 18462760, 25847864, 32309830, 64619660, 129239320]

約数ペア:

[(1, 129239320), (2, 64619660), (4, 32309830), (5, 25847864), (7, 18462760), (8, 16154915), (10, 12923932), (14, 9231380), (20, 6461966), (28, 4615690), (35, 3692552), (40, 3230983), (56, 2307845), (70, 1846276), (140, 923138), (280, 461569)]