209399465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2393}}^1$

素因数の和:2489

約数の個数: 32

約数和(自身を含む): 288199296

約数和(自身を除く): 78799831

約数列:

[1, 5, 11, 37, 43, 55, 185, 215, 407, 473, 1591, 2035, 2365, 2393, 7955, 11965, 17501, 26323, 87505, 88541, 102899, 131615, 442705, 514495, 973951, 1131889, 3807263, 4869755, 5659445, 19036315, 41879893, 209399465]

約数ペア:

[(1, 209399465), (5, 41879893), (11, 19036315), (37, 5659445), (43, 4869755), (55, 3807263), (185, 1131889), (215, 973951), (407, 514495), (473, 442705), (1591, 131615), (2035, 102899), (2365, 88541), (2393, 87505), (7955, 26323), (11965, 17501)]