231721945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{2029}}^1$

素因数の和:2305

約数の個数: 32

約数和(自身を含む): 343768320

約数和(自身を除く): 112046375

約数列:

[1, 5, 7, 13, 35, 65, 91, 251, 455, 1255, 1757, 2029, 3263, 8785, 10145, 14203, 16315, 22841, 26377, 71015, 114205, 131885, 184639, 509279, 923195, 2546395, 3564953, 6620627, 17824765, 33103135, 46344389, 231721945]

約数ペア:

[(1, 231721945), (5, 46344389), (7, 33103135), (13, 17824765), (35, 6620627), (65, 3564953), (91, 2546395), (251, 923195), (455, 509279), (1255, 184639), (1757, 131885), (2029, 114205), (3263, 71015), (8785, 26377), (10145, 22841), (14203, 16315)]