689969142

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^2\times {\mathrm{20731}}^1$

素因数の和:20825

約数の個数: 36

約数和(自身を含む): 1530581364

約数和(自身を除く): 840612222

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 1849, 3698, 5547, 11094, 16641, 20731, 33282, 41462, 62193, 124386, 186579, 373158, 891433, 1782866, 2674299, 5348598, 8022897, 16045794, 38331619, 76663238, 114994857, 229989714, 344984571, 689969142]

約数ペア:

[(1, 689969142), (2, 344984571), (3, 229989714), (6, 114994857), (9, 76663238), (18, 38331619), (43, 16045794), (86, 8022897), (129, 5348598), (258, 2674299), (387, 1782866), (774, 891433), (1849, 373158), (3698, 186579), (5547, 124386), (11094, 62193), (16641, 41462), (20731, 33282)]