208501865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{881}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 295166592

約数和(自身を除く): 86664727

約数列:

[1, 5, 11, 13, 55, 65, 143, 331, 715, 881, 1655, 3641, 4303, 4405, 9691, 11453, 18205, 21515, 47333, 48455, 57265, 125983, 236665, 291611, 629915, 1458055, 3207721, 3790943, 16038605, 18954715, 41700373, 208501865]

約数ペア:

[(1, 208501865), (5, 41700373), (11, 18954715), (13, 16038605), (55, 3790943), (65, 3207721), (143, 1458055), (331, 629915), (715, 291611), (881, 236665), (1655, 125983), (3641, 57265), (4303, 48455), (4405, 47333), (9691, 21515), (11453, 18205)]