1620845120

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{39883}}^1$

素因数の和:40027

約数の個数: 56

約数和(自身を含む): 3890125824

約数和(自身を除く): 2269280704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 8128, 10160, 20320, 39883, 40640, 79766, 159532, 199415, 319064, 398830, 638128, 797660, 1276256, 1595320, 2552512, 3190640, 5065141, 6381280, 10130282, 12762560, 20260564, 25325705, 40521128, 50651410, 81042256, 101302820, 162084512, 202605640, 324169024, 405211280, 810422560, 1620845120]

約数ペア:

[(1, 1620845120), (2, 810422560), (4, 405211280), (5, 324169024), (8, 202605640), (10, 162084512), (16, 101302820), (20, 81042256), (32, 50651410), (40, 40521128), (64, 25325705), (80, 20260564), (127, 12762560), (160, 10130282), (254, 6381280), (320, 5065141), (508, 3190640), (635, 2552512), (1016, 1595320), (1270, 1276256), (2032, 797660), (2540, 638128), (4064, 398830), (5080, 319064), (8128, 199415), (10160, 159532), (20320, 79766), (39883, 40640)]