28087884

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 83655936

約数和(自身を除く): 55568052

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 37, 44, 54, 66, 71, 74, 81, 99, 108, 111, 132, 142, 148, 162, 198, 213, 222, 243, 284, 297, 324, 333, 396, 407, 426, 444, 486, 594, 639, 666, 781, 814, 852, 891, 972, 999, 1188, 1221, 1278, 1332, 1562, 1628, 1782, 1917, 1998, 2343, 2442, 2556, 2627, 2673, 2997, 3124, 3564, 3663, 3834, 3996, 4686, 4884, 5254, 5346, 5751, 5994, 7029, 7326, 7668, 7881, 8991, 9372, 10508, 10692, 10989, 11502, 11988, 14058, 14652, 15762, 17253, 17982, 21087, 21978, 23004, 23643, 28116, 28897, 31524, 32967, 34506, 35964, 42174, 43956, 47286, 57794, 63261, 65934, 69012, 70929, 84348, 86691, 94572, 98901, 115588, 126522, 131868, 141858, 173382, 189783, 197802, 212787, 253044, 260073, 283716, 346764, 379566, 395604, 425574, 520146, 638361, 759132, 780219, 851148, 1040292, 1276722, 1560438, 2340657, 2553444, 3120876, 4681314, 7021971, 9362628, 14043942, 28087884]

約数ペア:

[(1, 28087884), (2, 14043942), (3, 9362628), (4, 7021971), (6, 4681314), (9, 3120876), (11, 2553444), (12, 2340657), (18, 1560438), (22, 1276722), (27, 1040292), (33, 851148), (36, 780219), (37, 759132), (44, 638361), (54, 520146), (66, 425574), (71, 395604), (74, 379566), (81, 346764), (99, 283716), (108, 260073), (111, 253044), (132, 212787), (142, 197802), (148, 189783), (162, 173382), (198, 141858), (213, 131868), (222, 126522), (243, 115588), (284, 98901), (297, 94572), (324, 86691), (333, 84348), (396, 70929), (407, 69012), (426, 65934), (444, 63261), (486, 57794), (594, 47286), (639, 43956), (666, 42174), (781, 35964), (814, 34506), (852, 32967), (891, 31524), (972, 28897), (999, 28116), (1188, 23643), (1221, 23004), (1278, 21978), (1332, 21087), (1562, 17982), (1628, 17253), (1782, 15762), (1917, 14652), (1998, 14058), (2343, 11988), (2442, 11502), (2556, 10989), (2627, 10692), (2673, 10508), (2997, 9372), (3124, 8991), (3564, 7881), (3663, 7668), (3834, 7326), (3996, 7029), (4686, 5994), (4884, 5751), (5254, 5346)]