208531840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1608

約数の個数: 128

約数和(自身を含む): 572832000

約数和(自身を除く): 364300160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 128, 152, 160, 176, 190, 209, 220, 304, 320, 352, 380, 418, 440, 608, 640, 704, 760, 836, 880, 1045, 1216, 1408, 1520, 1559, 1672, 1760, 2090, 2432, 3040, 3118, 3344, 3520, 4180, 6080, 6236, 6688, 7040, 7795, 8360, 12160, 12472, 13376, 15590, 16720, 17149, 24944, 26752, 29621, 31180, 33440, 34298, 49888, 59242, 62360, 66880, 68596, 85745, 99776, 118484, 124720, 133760, 137192, 148105, 171490, 199552, 236968, 249440, 274384, 296210, 325831, 342980, 473936, 498880, 548768, 592420, 651662, 685960, 947872, 997760, 1097536, 1184840, 1303324, 1371920, 1629155, 1895744, 2195072, 2369680, 2606648, 2743840, 3258310, 3791488, 4739360, 5213296, 5487680, 6516620, 9478720, 10426592, 10975360, 13033240, 18957440, 20853184, 26066480, 41706368, 52132960, 104265920, 208531840]

約数ペア:

[(1, 208531840), (2, 104265920), (4, 52132960), (5, 41706368), (8, 26066480), (10, 20853184), (11, 18957440), (16, 13033240), (19, 10975360), (20, 10426592), (22, 9478720), (32, 6516620), (38, 5487680), (40, 5213296), (44, 4739360), (55, 3791488), (64, 3258310), (76, 2743840), (80, 2606648), (88, 2369680), (95, 2195072), (110, 1895744), (128, 1629155), (152, 1371920), (160, 1303324), (176, 1184840), (190, 1097536), (209, 997760), (220, 947872), (304, 685960), (320, 651662), (352, 592420), (380, 548768), (418, 498880), (440, 473936), (608, 342980), (640, 325831), (704, 296210), (760, 274384), (836, 249440), (880, 236968), (1045, 199552), (1216, 171490), (1408, 148105), (1520, 137192), (1559, 133760), (1672, 124720), (1760, 118484), (2090, 99776), (2432, 85745), (3040, 68596), (3118, 66880), (3344, 62360), (3520, 59242), (4180, 49888), (6080, 34298), (6236, 33440), (6688, 31180), (7040, 29621), (7795, 26752), (8360, 24944), (12160, 17149), (12472, 16720), (13376, 15590)]