81999424

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1471}}^1$

素因数の和:1563

約数の個数: 56

約数和(自身を含む): 177970688

約数和(自身を除く): 95971264

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 134, 208, 268, 416, 536, 832, 871, 1072, 1471, 1742, 2144, 2942, 3484, 4288, 5884, 6968, 11768, 13936, 19123, 23536, 27872, 38246, 47072, 55744, 76492, 94144, 98557, 152984, 197114, 305968, 394228, 611936, 788456, 1223872, 1281241, 1576912, 2562482, 3153824, 5124964, 6307648, 10249928, 20499856, 40999712, 81999424]

約数ペア:

[(1, 81999424), (2, 40999712), (4, 20499856), (8, 10249928), (13, 6307648), (16, 5124964), (26, 3153824), (32, 2562482), (52, 1576912), (64, 1281241), (67, 1223872), (104, 788456), (134, 611936), (208, 394228), (268, 305968), (416, 197114), (536, 152984), (832, 98557), (871, 94144), (1072, 76492), (1471, 55744), (1742, 47072), (2144, 38246), (2942, 27872), (3484, 23536), (4288, 19123), (5884, 13936), (6968, 11768)]