389932257

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 634023936

約数和(自身を除く): 244091679

約数列:

[1, 3, 11, 13, 33, 39, 47, 83, 141, 143, 233, 249, 429, 517, 611, 699, 913, 1079, 1551, 1833, 2563, 2739, 3029, 3237, 3901, 6721, 7689, 9087, 10951, 11703, 11869, 19339, 20163, 32853, 33319, 35607, 42911, 50713, 58017, 99957, 120461, 128733, 142363, 152139, 212729, 251407, 361383, 427089, 557843, 638187, 754221, 908933, 1565993, 1673529, 2726799, 2765477, 4697979, 8296431, 9998263, 11816129, 29994789, 35448387, 129977419, 389932257]

約数ペア:

[(1, 389932257), (3, 129977419), (11, 35448387), (13, 29994789), (33, 11816129), (39, 9998263), (47, 8296431), (83, 4697979), (141, 2765477), (143, 2726799), (233, 1673529), (249, 1565993), (429, 908933), (517, 754221), (611, 638187), (699, 557843), (913, 427089), (1079, 361383), (1551, 251407), (1833, 212729), (2563, 152139), (2739, 142363), (3029, 128733), (3237, 120461), (3901, 99957), (6721, 58017), (7689, 50713), (9087, 42911), (10951, 35607), (11703, 33319), (11869, 32853), (19339, 20163)]