20661360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 160

約数和(自身を含む): 70709760

約数和(自身を除く): 50048400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 38, 40, 46, 48, 57, 60, 69, 76, 80, 92, 95, 114, 115, 120, 138, 152, 184, 190, 197, 228, 230, 240, 276, 285, 304, 345, 368, 380, 394, 437, 456, 460, 552, 570, 591, 690, 760, 788, 874, 912, 920, 985, 1104, 1140, 1182, 1311, 1380, 1520, 1576, 1748, 1840, 1970, 2185, 2280, 2364, 2622, 2760, 2955, 3152, 3496, 3743, 3940, 4370, 4531, 4560, 4728, 5244, 5520, 5910, 6555, 6992, 7486, 7880, 8740, 9062, 9456, 10488, 11229, 11820, 13110, 13593, 14972, 15760, 17480, 18124, 18715, 20976, 22458, 22655, 23640, 26220, 27186, 29944, 34960, 36248, 37430, 44916, 45310, 47280, 52440, 54372, 56145, 59888, 67965, 72496, 74860, 86089, 89832, 90620, 104880, 108744, 112290, 135930, 149720, 172178, 179664, 181240, 217488, 224580, 258267, 271860, 299440, 344356, 362480, 430445, 449160, 516534, 543720, 688712, 860890, 898320, 1033068, 1087440, 1291335, 1377424, 1721780, 2066136, 2582670, 3443560, 4132272, 5165340, 6887120, 10330680, 20661360]

約数ペア:

[(1, 20661360), (2, 10330680), (3, 6887120), (4, 5165340), (5, 4132272), (6, 3443560), (8, 2582670), (10, 2066136), (12, 1721780), (15, 1377424), (16, 1291335), (19, 1087440), (20, 1033068), (23, 898320), (24, 860890), (30, 688712), (38, 543720), (40, 516534), (46, 449160), (48, 430445), (57, 362480), (60, 344356), (69, 299440), (76, 271860), (80, 258267), (92, 224580), (95, 217488), (114, 181240), (115, 179664), (120, 172178), (138, 149720), (152, 135930), (184, 112290), (190, 108744), (197, 104880), (228, 90620), (230, 89832), (240, 86089), (276, 74860), (285, 72496), (304, 67965), (345, 59888), (368, 56145), (380, 54372), (394, 52440), (437, 47280), (456, 45310), (460, 44916), (552, 37430), (570, 36248), (591, 34960), (690, 29944), (760, 27186), (788, 26220), (874, 23640), (912, 22655), (920, 22458), (985, 20976), (1104, 18715), (1140, 18124), (1182, 17480), (1311, 15760), (1380, 14972), (1520, 13593), (1576, 13110), (1748, 11820), (1840, 11229), (1970, 10488), (2185, 9456), (2280, 9062), (2364, 8740), (2622, 7880), (2760, 7486), (2955, 6992), (3152, 6555), (3496, 5910), (3743, 5520), (3940, 5244), (4370, 4728), (4531, 4560)]