80533520

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3917}}^1$

素因数の和:4187

約数の個数: 40

約数和(自身を含む): 188016984

約数和(自身を除く): 107483464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 3917, 4112, 5140, 7834, 10280, 15668, 19585, 20560, 31336, 39170, 62672, 78340, 156680, 313360, 1006669, 2013338, 4026676, 5033345, 8053352, 10066690, 16106704, 20133380, 40266760, 80533520]

約数ペア:

[(1, 80533520), (2, 40266760), (4, 20133380), (5, 16106704), (8, 10066690), (10, 8053352), (16, 5033345), (20, 4026676), (40, 2013338), (80, 1006669), (257, 313360), (514, 156680), (1028, 78340), (1285, 62672), (2056, 39170), (2570, 31336), (3917, 20560), (4112, 19585), (5140, 15668), (7834, 10280)]