28258835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 10932205

約数列:

[1, 5, 11, 23, 55, 89, 115, 251, 253, 445, 979, 1255, 1265, 2047, 2761, 4895, 5773, 10235, 13805, 22339, 22517, 28865, 63503, 111695, 112585, 245729, 317515, 513797, 1228645, 2568985, 5651767, 28258835]

約数ペア:

[(1, 28258835), (5, 5651767), (11, 2568985), (23, 1228645), (55, 513797), (89, 317515), (115, 245729), (251, 112585), (253, 111695), (445, 63503), (979, 28865), (1255, 22517), (1265, 22339), (2047, 13805), (2761, 10235), (4895, 5773)]