221560960

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5167}}^1$

素因数の和:5253

約数の個数: 64

約数和(自身を含む): 537678720

約数和(自身を除く): 316117760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 536, 640, 670, 1072, 1340, 2144, 2680, 4288, 5167, 5360, 8576, 10334, 10720, 20668, 21440, 25835, 41336, 42880, 51670, 82672, 103340, 165344, 206680, 330688, 346189, 413360, 661376, 692378, 826720, 1384756, 1653440, 1730945, 2769512, 3306880, 3461890, 5539024, 6923780, 11078048, 13847560, 22156096, 27695120, 44312192, 55390240, 110780480, 221560960]

約数ペア:

[(1, 221560960), (2, 110780480), (4, 55390240), (5, 44312192), (8, 27695120), (10, 22156096), (16, 13847560), (20, 11078048), (32, 6923780), (40, 5539024), (64, 3461890), (67, 3306880), (80, 2769512), (128, 1730945), (134, 1653440), (160, 1384756), (268, 826720), (320, 692378), (335, 661376), (536, 413360), (640, 346189), (670, 330688), (1072, 206680), (1340, 165344), (2144, 103340), (2680, 82672), (4288, 51670), (5167, 42880), (5360, 41336), (8576, 25835), (10334, 21440), (10720, 20668)]