266672005

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 342144000

約数和(自身を除く): 75471995

約数列:

[1, 5, 23, 79, 115, 149, 197, 395, 745, 985, 1817, 3427, 4531, 9085, 11771, 15563, 17135, 22655, 29353, 58855, 77815, 146765, 270733, 357949, 675119, 1353665, 1789745, 2318887, 3375595, 11594435, 53334401, 266672005]

約数ペア:

[(1, 266672005), (5, 53334401), (23, 11594435), (79, 3375595), (115, 2318887), (149, 1789745), (197, 1353665), (395, 675119), (745, 357949), (985, 270733), (1817, 146765), (3427, 77815), (4531, 58855), (9085, 29353), (11771, 22655), (15563, 17135)]