28285686

素因数分解:

$2^1\times 3^5\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:89

約数の個数: 144

約数和(自身を含む): 77265552

約数和(自身を除く): 48979866

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 33, 37, 39, 54, 66, 74, 78, 81, 99, 111, 117, 121, 143, 162, 198, 222, 234, 242, 243, 286, 297, 333, 351, 363, 407, 429, 481, 486, 594, 666, 702, 726, 814, 858, 891, 962, 999, 1053, 1089, 1221, 1287, 1443, 1573, 1782, 1998, 2106, 2178, 2442, 2574, 2673, 2886, 2997, 3146, 3159, 3267, 3663, 3861, 4329, 4477, 4719, 5291, 5346, 5994, 6318, 6534, 7326, 7722, 8658, 8954, 8991, 9438, 9801, 10582, 10989, 11583, 12987, 13431, 14157, 15873, 17982, 19602, 21978, 23166, 25974, 26862, 28314, 29403, 31746, 32967, 34749, 38961, 40293, 42471, 47619, 58201, 58806, 65934, 69498, 77922, 80586, 84942, 95238, 98901, 116402, 116883, 120879, 127413, 142857, 174603, 197802, 233766, 241758, 254826, 285714, 349206, 362637, 382239, 428571, 523809, 725274, 764478, 857142, 1047618, 1087911, 1285713, 1571427, 2175822, 2571426, 3142854, 4714281, 9428562, 14142843, 28285686]

約数ペア:

[(1, 28285686), (2, 14142843), (3, 9428562), (6, 4714281), (9, 3142854), (11, 2571426), (13, 2175822), (18, 1571427), (22, 1285713), (26, 1087911), (27, 1047618), (33, 857142), (37, 764478), (39, 725274), (54, 523809), (66, 428571), (74, 382239), (78, 362637), (81, 349206), (99, 285714), (111, 254826), (117, 241758), (121, 233766), (143, 197802), (162, 174603), (198, 142857), (222, 127413), (234, 120879), (242, 116883), (243, 116402), (286, 98901), (297, 95238), (333, 84942), (351, 80586), (363, 77922), (407, 69498), (429, 65934), (481, 58806), (486, 58201), (594, 47619), (666, 42471), (702, 40293), (726, 38961), (814, 34749), (858, 32967), (891, 31746), (962, 29403), (999, 28314), (1053, 26862), (1089, 25974), (1221, 23166), (1287, 21978), (1443, 19602), (1573, 17982), (1782, 15873), (1998, 14157), (2106, 13431), (2178, 12987), (2442, 11583), (2574, 10989), (2673, 10582), (2886, 9801), (2997, 9438), (3146, 8991), (3159, 8954), (3267, 8658), (3663, 7722), (3861, 7326), (4329, 6534), (4477, 6318), (4719, 5994), (5291, 5346)]