40030991

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 56881440

約数和(自身を除く): 16850449

約数列:

[1, 7, 11, 13, 29, 49, 77, 91, 143, 197, 203, 319, 377, 539, 637, 1001, 1379, 1421, 2167, 2233, 2561, 2639, 4147, 5713, 7007, 9653, 15169, 15631, 17927, 18473, 28171, 29029, 39991, 62843, 74269, 106183, 125489, 197197, 203203, 279937, 439901, 519883, 816959, 1380379, 3079307, 3639181, 5718713, 40030991]

約数ペア:

[(1, 40030991), (7, 5718713), (11, 3639181), (13, 3079307), (29, 1380379), (49, 816959), (77, 519883), (91, 439901), (143, 279937), (197, 203203), (203, 197197), (319, 125489), (377, 106183), (539, 74269), (637, 62843), (1001, 39991), (1379, 29029), (1421, 28171), (2167, 18473), (2233, 17927), (2561, 15631), (2639, 15169), (4147, 9653), (5713, 7007)]