81282575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 116992512

約数和(自身を除く): 35709937

約数列:

[1, 5, 11, 23, 25, 55, 71, 115, 181, 253, 275, 355, 575, 781, 905, 1265, 1633, 1775, 1991, 3905, 4163, 4525, 6325, 8165, 9955, 12851, 17963, 19525, 20815, 40825, 45793, 49775, 64255, 89815, 104075, 141361, 228965, 295573, 321275, 449075, 706805, 1144825, 1477865, 3251303, 3534025, 7389325, 16256515, 81282575]

約数ペア:

[(1, 81282575), (5, 16256515), (11, 7389325), (23, 3534025), (25, 3251303), (55, 1477865), (71, 1144825), (115, 706805), (181, 449075), (253, 321275), (275, 295573), (355, 228965), (575, 141361), (781, 104075), (905, 89815), (1265, 64255), (1633, 49775), (1775, 45793), (1991, 40825), (3905, 20815), (4163, 19525), (4525, 17963), (6325, 12851), (8165, 9955)]