81693920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:401

約数の個数: 192

約数和(自身を含む): 254016000

約数和(自身を除く): 172322080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 32, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 95, 110, 112, 133, 140, 152, 154, 160, 176, 190, 209, 220, 224, 266, 280, 304, 308, 349, 352, 380, 385, 418, 440, 532, 560, 608, 616, 665, 698, 760, 770, 836, 880, 1045, 1064, 1120, 1232, 1330, 1396, 1463, 1520, 1540, 1672, 1745, 1760, 2090, 2128, 2443, 2464, 2660, 2792, 2926, 3040, 3080, 3344, 3490, 3839, 4180, 4256, 4886, 5320, 5584, 5852, 6160, 6631, 6688, 6980, 7315, 7678, 8360, 9772, 10640, 11168, 11704, 12215, 12320, 13262, 13960, 14630, 15356, 16720, 19195, 19544, 21280, 23408, 24430, 26524, 26873, 27920, 29260, 30712, 33155, 33440, 38390, 39088, 46417, 46816, 48860, 53048, 53746, 55840, 58520, 61424, 66310, 72941, 76780, 78176, 92834, 97720, 106096, 107492, 117040, 122848, 132620, 134365, 145882, 153560, 185668, 195440, 212192, 214984, 232085, 234080, 265240, 268730, 291764, 307120, 364705, 371336, 390880, 429968, 464170, 510587, 530480, 537460, 583528, 614240, 729410, 742672, 859936, 928340, 1021174, 1060960, 1074920, 1167056, 1458820, 1485344, 1856680, 2042348, 2149840, 2334112, 2552935, 2917640, 3713360, 4084696, 4299680, 5105870, 5835280, 7426720, 8169392, 10211740, 11670560, 16338784, 20423480, 40846960, 81693920]

約数ペア:

[(1, 81693920), (2, 40846960), (4, 20423480), (5, 16338784), (7, 11670560), (8, 10211740), (10, 8169392), (11, 7426720), (14, 5835280), (16, 5105870), (19, 4299680), (20, 4084696), (22, 3713360), (28, 2917640), (32, 2552935), (35, 2334112), (38, 2149840), (40, 2042348), (44, 1856680), (55, 1485344), (56, 1458820), (70, 1167056), (76, 1074920), (77, 1060960), (80, 1021174), (88, 928340), (95, 859936), (110, 742672), (112, 729410), (133, 614240), (140, 583528), (152, 537460), (154, 530480), (160, 510587), (176, 464170), (190, 429968), (209, 390880), (220, 371336), (224, 364705), (266, 307120), (280, 291764), (304, 268730), (308, 265240), (349, 234080), (352, 232085), (380, 214984), (385, 212192), (418, 195440), (440, 185668), (532, 153560), (560, 145882), (608, 134365), (616, 132620), (665, 122848), (698, 117040), (760, 107492), (770, 106096), (836, 97720), (880, 92834), (1045, 78176), (1064, 76780), (1120, 72941), (1232, 66310), (1330, 61424), (1396, 58520), (1463, 55840), (1520, 53746), (1540, 53048), (1672, 48860), (1745, 46816), (1760, 46417), (2090, 39088), (2128, 38390), (2443, 33440), (2464, 33155), (2660, 30712), (2792, 29260), (2926, 27920), (3040, 26873), (3080, 26524), (3344, 24430), (3490, 23408), (3839, 21280), (4180, 19544), (4256, 19195), (4886, 16720), (5320, 15356), (5584, 14630), (5852, 13960), (6160, 13262), (6631, 12320), (6688, 12215), (6980, 11704), (7315, 11168), (7678, 10640), (8360, 9772)]