20648812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 40793760

約数和(自身を除く): 20144948

約数列:

[1, 2, 4, 17, 29, 34, 37, 58, 68, 74, 116, 148, 283, 493, 566, 629, 986, 1073, 1132, 1258, 1972, 2146, 2516, 4292, 4811, 8207, 9622, 10471, 16414, 18241, 19244, 20942, 32828, 36482, 41884, 72964, 139519, 178007, 279038, 303659, 356014, 558076, 607318, 712028, 1214636, 5162203, 10324406, 20648812]

約数ペア:

[(1, 20648812), (2, 10324406), (4, 5162203), (17, 1214636), (29, 712028), (34, 607318), (37, 558076), (58, 356014), (68, 303659), (74, 279038), (116, 178007), (148, 139519), (283, 72964), (493, 41884), (566, 36482), (629, 32828), (986, 20942), (1073, 19244), (1132, 18241), (1258, 16414), (1972, 10471), (2146, 9622), (2516, 8207), (4292, 4811)]