81868188

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2741}}^1$

素因数の和:2898

約数の個数: 48

約数和(自身を含む): 202688640

約数和(自身を除く): 120820452

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 131, 228, 262, 393, 524, 786, 1572, 2489, 2741, 4978, 5482, 7467, 8223, 9956, 10964, 14934, 16446, 29868, 32892, 52079, 104158, 156237, 208316, 312474, 359071, 624948, 718142, 1077213, 1436284, 2154426, 4308852, 6822349, 13644698, 20467047, 27289396, 40934094, 81868188]

約数ペア:

[(1, 81868188), (2, 40934094), (3, 27289396), (4, 20467047), (6, 13644698), (12, 6822349), (19, 4308852), (38, 2154426), (57, 1436284), (76, 1077213), (114, 718142), (131, 624948), (228, 359071), (262, 312474), (393, 208316), (524, 156237), (786, 104158), (1572, 52079), (2489, 32892), (2741, 29868), (4978, 16446), (5482, 14934), (7467, 10964), (8223, 9956)]