28706436

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1113

約数の個数: 72

約数和(自身を含む): 80353728

約数和(自身を除く): 51647292

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 71, 99, 132, 142, 198, 213, 284, 396, 426, 639, 781, 852, 1021, 1278, 1562, 2042, 2343, 2556, 3063, 3124, 4084, 4686, 6126, 7029, 9189, 9372, 11231, 12252, 14058, 18378, 22462, 28116, 33693, 36756, 44924, 67386, 72491, 101079, 134772, 144982, 202158, 217473, 289964, 404316, 434946, 652419, 797401, 869892, 1304838, 1594802, 2392203, 2609676, 3189604, 4784406, 7176609, 9568812, 14353218, 28706436]

約数ペア:

[(1, 28706436), (2, 14353218), (3, 9568812), (4, 7176609), (6, 4784406), (9, 3189604), (11, 2609676), (12, 2392203), (18, 1594802), (22, 1304838), (33, 869892), (36, 797401), (44, 652419), (66, 434946), (71, 404316), (99, 289964), (132, 217473), (142, 202158), (198, 144982), (213, 134772), (284, 101079), (396, 72491), (426, 67386), (639, 44924), (781, 36756), (852, 33693), (1021, 28116), (1278, 22462), (1562, 18378), (2042, 14058), (2343, 12252), (2556, 11231), (3063, 9372), (3124, 9189), (4084, 7029), (4686, 6126)]