203984305

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{13649}}^1$

素因数の和:13729

約数の個数: 24

約数和(自身を含む): 289434600

約数和(自身を除く): 85450295

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 13649, 14945, 68245, 95543, 477715, 668801, 832589, 3344005, 4162945, 5828123, 29140615, 40796861, 203984305]

約数ペア:

[(1, 203984305), (5, 40796861), (7, 29140615), (35, 5828123), (49, 4162945), (61, 3344005), (245, 832589), (305, 668801), (427, 477715), (2135, 95543), (2989, 68245), (13649, 14945)]