521290240

素因数分解:

$2^9\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1297}}^1$

素因数の和:1477

約数の個数: 80

約数和(自身を含む): 1258805592

約数和(自身を除く): 737515352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 512, 628, 640, 785, 1256, 1280, 1297, 1570, 2512, 2560, 2594, 3140, 5024, 5188, 6280, 6485, 10048, 10376, 12560, 12970, 20096, 20752, 25120, 25940, 40192, 41504, 50240, 51880, 80384, 83008, 100480, 103760, 166016, 200960, 203629, 207520, 332032, 401920, 407258, 415040, 664064, 814516, 830080, 1018145, 1629032, 1660160, 2036290, 3258064, 3320320, 4072580, 6516128, 8145160, 13032256, 16290320, 26064512, 32580640, 52129024, 65161280, 104258048, 130322560, 260645120, 521290240]

約数ペア:

[(1, 521290240), (2, 260645120), (4, 130322560), (5, 104258048), (8, 65161280), (10, 52129024), (16, 32580640), (20, 26064512), (32, 16290320), (40, 13032256), (64, 8145160), (80, 6516128), (128, 4072580), (157, 3320320), (160, 3258064), (256, 2036290), (314, 1660160), (320, 1629032), (512, 1018145), (628, 830080), (640, 814516), (785, 664064), (1256, 415040), (1280, 407258), (1297, 401920), (1570, 332032), (2512, 207520), (2560, 203629), (2594, 200960), (3140, 166016), (5024, 103760), (5188, 100480), (6280, 83008), (6485, 80384), (10048, 51880), (10376, 50240), (12560, 41504), (12970, 40192), (20096, 25940), (20752, 25120)]