221772440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{1249}}^1$

素因数の和:1476

約数の個数: 64

約数和(自身を含む): 523800000

約数和(自身を除く): 302027560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 193, 230, 386, 460, 772, 920, 965, 1249, 1544, 1930, 2498, 3860, 4439, 4996, 6245, 7720, 8878, 9992, 12490, 17756, 22195, 24980, 28727, 35512, 44390, 49960, 57454, 88780, 114908, 143635, 177560, 229816, 241057, 287270, 482114, 574540, 964228, 1149080, 1205285, 1928456, 2410570, 4821140, 5544311, 9642280, 11088622, 22177244, 27721555, 44354488, 55443110, 110886220, 221772440]

約数ペア:

[(1, 221772440), (2, 110886220), (4, 55443110), (5, 44354488), (8, 27721555), (10, 22177244), (20, 11088622), (23, 9642280), (40, 5544311), (46, 4821140), (92, 2410570), (115, 1928456), (184, 1205285), (193, 1149080), (230, 964228), (386, 574540), (460, 482114), (772, 287270), (920, 241057), (965, 229816), (1249, 177560), (1544, 143635), (1930, 114908), (2498, 88780), (3860, 57454), (4439, 49960), (4996, 44390), (6245, 35512), (7720, 28727), (8878, 24980), (9992, 22195), (12490, 17756)]