217907208

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:727

約数の個数: 96

約数和(自身を含む): 611147160

約数和(自身を除く): 393239952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 157, 222, 296, 314, 333, 444, 471, 521, 628, 666, 888, 942, 1042, 1256, 1332, 1413, 1563, 1884, 2084, 2664, 2826, 3126, 3768, 4168, 4689, 5652, 5809, 6252, 9378, 11304, 11618, 12504, 17427, 18756, 19277, 23236, 34854, 37512, 38554, 46472, 52281, 57831, 69708, 77108, 81797, 104562, 115662, 139416, 154216, 163594, 173493, 209124, 231324, 245391, 327188, 346986, 418248, 462648, 490782, 654376, 693972, 736173, 981564, 1387944, 1472346, 1963128, 2944692, 3026489, 5889384, 6052978, 9079467, 12105956, 18158934, 24211912, 27238401, 36317868, 54476802, 72635736, 108953604, 217907208]

約数ペア:

[(1, 217907208), (2, 108953604), (3, 72635736), (4, 54476802), (6, 36317868), (8, 27238401), (9, 24211912), (12, 18158934), (18, 12105956), (24, 9079467), (36, 6052978), (37, 5889384), (72, 3026489), (74, 2944692), (111, 1963128), (148, 1472346), (157, 1387944), (222, 981564), (296, 736173), (314, 693972), (333, 654376), (444, 490782), (471, 462648), (521, 418248), (628, 346986), (666, 327188), (888, 245391), (942, 231324), (1042, 209124), (1256, 173493), (1332, 163594), (1413, 154216), (1563, 139416), (1884, 115662), (2084, 104562), (2664, 81797), (2826, 77108), (3126, 69708), (3768, 57831), (4168, 52281), (4689, 46472), (5652, 38554), (5809, 37512), (6252, 34854), (9378, 23236), (11304, 19277), (11618, 18756), (12504, 17427)]