16256515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 22643712

約数和(自身を除く): 6387197

約数列:

[1, 5, 11, 23, 55, 71, 115, 181, 253, 355, 781, 905, 1265, 1633, 1991, 3905, 4163, 8165, 9955, 12851, 17963, 20815, 45793, 64255, 89815, 141361, 228965, 295573, 706805, 1477865, 3251303, 16256515]

約数ペア:

[(1, 16256515), (5, 3251303), (11, 1477865), (23, 706805), (55, 295573), (71, 228965), (115, 141361), (181, 89815), (253, 64255), (355, 45793), (781, 20815), (905, 17963), (1265, 12851), (1633, 9955), (1991, 8165), (3905, 4163)]