291246320

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^2\times {\mathrm{811}}^1$

素因数の和:958

約数の個数: 60

約数和(自身を含む): 688252824

約数和(自身を除く): 397006504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 811, 1072, 1340, 1622, 2680, 3244, 4055, 4489, 5360, 6488, 8110, 8978, 12976, 16220, 17956, 22445, 32440, 35912, 44890, 54337, 64880, 71824, 89780, 108674, 179560, 217348, 271685, 359120, 434696, 543370, 869392, 1086740, 2173480, 3640579, 4346960, 7281158, 14562316, 18202895, 29124632, 36405790, 58249264, 72811580, 145623160, 291246320]

約数ペア:

[(1, 291246320), (2, 145623160), (4, 72811580), (5, 58249264), (8, 36405790), (10, 29124632), (16, 18202895), (20, 14562316), (40, 7281158), (67, 4346960), (80, 3640579), (134, 2173480), (268, 1086740), (335, 869392), (536, 543370), (670, 434696), (811, 359120), (1072, 271685), (1340, 217348), (1622, 179560), (2680, 108674), (3244, 89780), (4055, 71824), (4489, 64880), (5360, 54337), (6488, 44890), (8110, 35912), (8978, 32440), (12976, 22445), (16220, 17956)]