420083385

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{32909}}^1$

素因数の和:32977

約数の個数: 32

約数和(自身を含む): 720334080

約数和(自身を除く): 300250695

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 2553, 4255, 12765, 32909, 98727, 164545, 493635, 756907, 1217633, 2270721, 3652899, 3784535, 6088165, 11353605, 18264495, 28005559, 84016677, 140027795, 420083385]

約数ペア:

[(1, 420083385), (3, 140027795), (5, 84016677), (15, 28005559), (23, 18264495), (37, 11353605), (69, 6088165), (111, 3784535), (115, 3652899), (185, 2270721), (345, 1217633), (555, 756907), (851, 493635), (2553, 164545), (4255, 98727), (12765, 32909)]