1641205760

素因数分解:

$2^{12}\times 5^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:787

約数の個数: 104

約数和(自身を含む): 3975714816

約数和(自身を除く): 2334509056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 512, 631, 635, 640, 1016, 1024, 1262, 1270, 1280, 2032, 2048, 2524, 2540, 2560, 3155, 4064, 4096, 5048, 5080, 5120, 6310, 8128, 10096, 10160, 10240, 12620, 16256, 20192, 20320, 20480, 25240, 32512, 40384, 40640, 50480, 65024, 80137, 80768, 81280, 100960, 130048, 160274, 161536, 162560, 201920, 260096, 320548, 323072, 325120, 400685, 403840, 520192, 641096, 646144, 650240, 801370, 807680, 1282192, 1292288, 1300480, 1602740, 1615360, 2564384, 2584576, 2600960, 3205480, 3230720, 5128768, 6410960, 6461440, 10257536, 12821920, 12922880, 20515072, 25643840, 41030144, 51287680, 82060288, 102575360, 164120576, 205150720, 328241152, 410301440, 820602880, 1641205760]

約数ペア:

[(1, 1641205760), (2, 820602880), (4, 410301440), (5, 328241152), (8, 205150720), (10, 164120576), (16, 102575360), (20, 82060288), (32, 51287680), (40, 41030144), (64, 25643840), (80, 20515072), (127, 12922880), (128, 12821920), (160, 10257536), (254, 6461440), (256, 6410960), (320, 5128768), (508, 3230720), (512, 3205480), (631, 2600960), (635, 2584576), (640, 2564384), (1016, 1615360), (1024, 1602740), (1262, 1300480), (1270, 1292288), (1280, 1282192), (2032, 807680), (2048, 801370), (2524, 650240), (2540, 646144), (2560, 641096), (3155, 520192), (4064, 403840), (4096, 400685), (5048, 325120), (5080, 323072), (5120, 320548), (6310, 260096), (8128, 201920), (10096, 162560), (10160, 161536), (10240, 160274), (12620, 130048), (16256, 100960), (20192, 81280), (20320, 80768), (20480, 80137), (25240, 65024), (32512, 50480), (40384, 40640)]