217680710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{9679}}^1$

素因数の和:9872

約数の個数: 32

約数和(自身を含む): 424448640

約数和(自身を除く): 206767930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 1730, 2249, 4498, 9679, 11245, 19358, 22490, 48395, 96790, 125827, 251654, 629135, 1258270, 1674467, 3348934, 8372335, 16744670, 21768071, 43536142, 108840355, 217680710]

約数ペア:

[(1, 217680710), (2, 108840355), (5, 43536142), (10, 21768071), (13, 16744670), (26, 8372335), (65, 3348934), (130, 1674467), (173, 1258270), (346, 629135), (865, 251654), (1730, 125827), (2249, 96790), (4498, 48395), (9679, 22490), (11245, 19358)]