81690480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4933}}^1$

素因数の和:4975

約数の個数: 120

約数和(自身を含む): 286329888

約数和(自身を除く): 204639408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 4933, 5520, 8280, 9866, 14799, 16560, 19732, 24665, 29598, 39464, 44397, 49330, 59196, 73995, 78928, 88794, 98660, 113459, 118392, 147990, 177588, 197320, 221985, 226918, 236784, 295980, 340377, 355176, 394640, 443970, 453836, 567295, 591960, 680754, 710352, 887940, 907672, 1021131, 1134590, 1183920, 1361508, 1701885, 1775880, 1815344, 2042262, 2269180, 2723016, 3403770, 3551760, 4084524, 4538360, 5105655, 5446032, 6807540, 8169048, 9076720, 10211310, 13615080, 16338096, 20422620, 27230160, 40845240, 81690480]

約数ペア:

[(1, 81690480), (2, 40845240), (3, 27230160), (4, 20422620), (5, 16338096), (6, 13615080), (8, 10211310), (9, 9076720), (10, 8169048), (12, 6807540), (15, 5446032), (16, 5105655), (18, 4538360), (20, 4084524), (23, 3551760), (24, 3403770), (30, 2723016), (36, 2269180), (40, 2042262), (45, 1815344), (46, 1775880), (48, 1701885), (60, 1361508), (69, 1183920), (72, 1134590), (80, 1021131), (90, 907672), (92, 887940), (115, 710352), (120, 680754), (138, 591960), (144, 567295), (180, 453836), (184, 443970), (207, 394640), (230, 355176), (240, 340377), (276, 295980), (345, 236784), (360, 226918), (368, 221985), (414, 197320), (460, 177588), (552, 147990), (690, 118392), (720, 113459), (828, 98660), (920, 88794), (1035, 78928), (1104, 73995), (1380, 59196), (1656, 49330), (1840, 44397), (2070, 39464), (2760, 29598), (3312, 24665), (4140, 19732), (4933, 16560), (5520, 14799), (8280, 9866)]