217565575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{1889}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 286856640

約数和(自身を除く): 69291065

約数列:

[1, 5, 17, 25, 85, 271, 425, 1355, 1889, 4607, 6775, 9445, 23035, 32113, 47225, 115175, 160565, 511919, 802825, 2559595, 8702623, 12797975, 43513115, 217565575]

約数ペア:

[(1, 217565575), (5, 43513115), (17, 12797975), (25, 8702623), (85, 2559595), (271, 802825), (425, 511919), (1355, 160565), (1889, 115175), (4607, 47225), (6775, 32113), (9445, 23035)]