278317115

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{1907}}^1$

素因数の和:2047

約数の個数: 24

約数和(自身を含む): 358482672

約数和(自身を除く): 80165557

約数列:

[1, 5, 17, 85, 101, 289, 505, 1445, 1717, 1907, 8585, 9535, 29189, 32419, 145945, 162095, 192607, 551123, 963035, 2755615, 3274319, 16371595, 55663423, 278317115]

約数ペア:

[(1, 278317115), (5, 55663423), (17, 16371595), (85, 3274319), (101, 2755615), (289, 963035), (505, 551123), (1445, 192607), (1717, 162095), (1907, 145945), (8585, 32419), (9535, 29189)]